./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.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/ldv-memsafety/memleaks_test18_2.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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:07:21,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:07:21,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 09:07:21,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:07:21,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:07:21,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:07:21,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:07:21,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:07:21,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:07:21,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:07:21,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:07:21,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:07:21,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:07:21,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:07:21,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:07:21,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:07:21,298 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 -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2025-02-08 09:07:21,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:07:21,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:07:21,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:07:21,507 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:07:21,507 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:07:21,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2025-02-08 09:07:22,618 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c0207bce/cce30956e1ac437794ae1dc5618eb22c/FLAG512e22bf2 [2025-02-08 09:07:23,060 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:07:23,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2025-02-08 09:07:23,076 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c0207bce/cce30956e1ac437794ae1dc5618eb22c/FLAG512e22bf2 [2025-02-08 09:07:23,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c0207bce/cce30956e1ac437794ae1dc5618eb22c [2025-02-08 09:07:23,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:07:23,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:07:23,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:07:23,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:07:23,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:07:23,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cd8bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23, skipping insertion in model container [2025-02-08 09:07:23,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:07:23,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:07:23,510 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:07:23,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:07:23,579 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:07:23,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23 WrapperNode [2025-02-08 09:07:23,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:07:23,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:07:23,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:07:23,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:07:23,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,622 INFO L138 Inliner]: procedures = 164, calls = 73, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 46 [2025-02-08 09:07:23,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:07:23,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:07:23,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:07:23,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:07:23,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,656 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-08 09:07:23,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,663 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:07:23,667 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:07:23,667 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:07:23,667 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:07:23,678 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (1/1) ... [2025-02-08 09:07:23,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:07:23,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:23,755 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 09:07:23,757 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 09:07:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-08 09:07:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-08 09:07:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 09:07:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 09:07:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 09:07:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 09:07:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 09:07:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 09:07:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 09:07:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 09:07:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 09:07:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:07:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:07:23,893 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:07:23,894 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:07:23,938 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774: assume entry_point_~j~0#1 >= 0;call entry_point_#t~mem45#1.base, entry_point_#t~mem45#1.offset := read~$Pointer$#1(entry_point_~array~0#1.base, entry_point_~array~0#1.offset + 4 * entry_point_~j~0#1, 4);call ULTIMATE.dealloc(entry_point_#t~mem45#1.base, entry_point_#t~mem45#1.offset);havoc entry_point_#t~mem45#1.base, entry_point_#t~mem45#1.offset;entry_point_#t~post46#1 := entry_point_~j~0#1; [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774: assume !(entry_point_~j~0#1 >= 0);call ULTIMATE.dealloc(entry_point_~array~0#1.base, entry_point_~array~0#1.offset); [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-1: assume entry_point_#t~post46#1 - 1 <= 2147483647;entry_point_~j~0#1 := entry_point_#t~post46#1 - 1;havoc entry_point_#t~post46#1; [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-1: assume !(entry_point_#t~post46#1 - 1 <= 2147483647); [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-2: assume entry_point_#t~post46#1 - 1 >= -2147483648; [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-2: assume !(entry_point_#t~post46#1 - 1 >= -2147483648); [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-3: assume entry_point_~i~0#1 - 1 <= 2147483647;entry_point_~j~0#1 := entry_point_~i~0#1 - 1; [2025-02-08 09:07:23,991 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-3: assume !(entry_point_~i~0#1 - 1 <= 2147483647); [2025-02-08 09:07:23,992 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-4: assume entry_point_~i~0#1 - 1 >= -2147483648; [2025-02-08 09:07:23,992 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L774-4: assume !(entry_point_~i~0#1 - 1 >= -2147483648); [2025-02-08 09:07:23,997 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-02-08 09:07:23,997 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:07:24,002 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:07:24,003 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:07:24,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:24 BoogieIcfgContainer [2025-02-08 09:07:24,003 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:07:24,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:07:24,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:07:24,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:07:24,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:07:23" (1/3) ... [2025-02-08 09:07:24,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a16b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:07:24, skipping insertion in model container [2025-02-08 09:07:24,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:23" (2/3) ... [2025-02-08 09:07:24,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a16b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:07:24, skipping insertion in model container [2025-02-08 09:07:24,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:24" (3/3) ... [2025-02-08 09:07:24,012 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2025-02-08 09:07:24,022 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:07:24,023 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test18_2.i that has 2 procedures, 20 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-02-08 09:07:24,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:07:24,064 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;@2b81984e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:07:24,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 09:07:24,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-08 09:07:24,074 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:24,075 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:24,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:07:24,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:24,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1541799429, now seen corresponding path program 1 times [2025-02-08 09:07:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109801350] [2025-02-08 09:07:24,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:24,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:24,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 09:07:24,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 09:07:24,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:24,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:24,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:07:24,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:24,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109801350] [2025-02-08 09:07:24,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109801350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:24,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:24,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:07:24,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717716113] [2025-02-08 09:07:24,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:24,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:07:24,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:24,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:07:24,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:07:24,432 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:24,480 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2025-02-08 09:07:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:07:24,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-02-08 09:07:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:24,486 INFO L225 Difference]: With dead ends: 30 [2025-02-08 09:07:24,486 INFO L226 Difference]: Without dead ends: 22 [2025-02-08 09:07:24,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:07:24,490 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:24,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-08 09:07:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-08 09:07:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:07:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-08 09:07:24,514 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2025-02-08 09:07:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:24,514 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-08 09:07:24,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-08 09:07:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-08 09:07:24,515 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:24,515 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:24,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 09:07:24,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:07:24,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:24,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1013152546, now seen corresponding path program 1 times [2025-02-08 09:07:24,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:24,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410891279] [2025-02-08 09:07:24,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:24,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 09:07:24,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 09:07:24,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:24,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:07:24,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:24,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410891279] [2025-02-08 09:07:24,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410891279] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:24,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144723098] [2025-02-08 09:07:24,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:24,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:24,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:24,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:24,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 09:07:25,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 09:07:25,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 09:07:25,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:25,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:25,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 09:07:25,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:07:25,233 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:07:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144723098] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:25,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:07:25,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-08 09:07:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010568247] [2025-02-08 09:07:25,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:25,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:07:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:25,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:07:25,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 09:07:25,235 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:07:25,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:25,307 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-02-08 09:07:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 09:07:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2025-02-08 09:07:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:25,308 INFO L225 Difference]: With dead ends: 22 [2025-02-08 09:07:25,308 INFO L226 Difference]: Without dead ends: 21 [2025-02-08 09:07:25,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 09:07:25,309 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:25,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:07:25,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-02-08 09:07:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-02-08 09:07:25,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:07:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2025-02-08 09:07:25,315 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 27 [2025-02-08 09:07:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:25,315 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2025-02-08 09:07:25,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:07:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2025-02-08 09:07:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-08 09:07:25,316 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:25,316 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:25,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 09:07:25,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:25,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:07:25,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1342957866, now seen corresponding path program 1 times [2025-02-08 09:07:25,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:25,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798448606] [2025-02-08 09:07:25,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:25,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:25,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 09:07:25,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 09:07:25,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:25,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:07:25,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:25,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798448606] [2025-02-08 09:07:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798448606] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:25,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351131860] [2025-02-08 09:07:25,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:25,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:25,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:25,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:25,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 09:07:25,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 09:07:25,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 09:07:25,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:25,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:25,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 09:07:25,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:07:25,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:07:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:07:25,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351131860] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:07:25,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:07:25,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 09:07:25,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824943446] [2025-02-08 09:07:25,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:07:25,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 09:07:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:25,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 09:07:25,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:07:25,838 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 09:07:25,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:25,880 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2025-02-08 09:07:25,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 09:07:25,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2025-02-08 09:07:25,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:25,881 INFO L225 Difference]: With dead ends: 40 [2025-02-08 09:07:25,881 INFO L226 Difference]: Without dead ends: 39 [2025-02-08 09:07:25,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:07:25,882 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:25,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-02-08 09:07:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-02-08 09:07:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 09:07:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2025-02-08 09:07:25,886 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 28 [2025-02-08 09:07:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:25,887 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2025-02-08 09:07:25,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 09:07:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2025-02-08 09:07:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 09:07:25,888 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:25,888 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:25,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 09:07:26,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:26,090 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:07:26,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2107000619, now seen corresponding path program 2 times [2025-02-08 09:07:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73425634] [2025-02-08 09:07:26,094 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:07:26,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:26,148 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-02-08 09:07:26,159 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 09:07:26,161 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:07:26,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-08 09:07:26,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73425634] [2025-02-08 09:07:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73425634] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936300342] [2025-02-08 09:07:26,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:07:26,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:26,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:26,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:26,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 09:07:26,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-02-08 09:07:26,379 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 09:07:26,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:07:26,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:26,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 09:07:26,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 09:07:26,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:07:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 09:07:26,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936300342] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:07:26,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:07:26,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 11, 11] total 24 [2025-02-08 09:07:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083007675] [2025-02-08 09:07:26,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:07:26,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-08 09:07:26,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:26,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-08 09:07:26,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2025-02-08 09:07:26,804 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 25 states have internal predecessors, (71), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-02-08 09:07:26,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:26,989 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2025-02-08 09:07:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 09:07:26,990 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 25 states have internal predecessors, (71), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 58 [2025-02-08 09:07:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:26,990 INFO L225 Difference]: With dead ends: 46 [2025-02-08 09:07:26,990 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 09:07:26,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2025-02-08 09:07:26,992 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:26,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:07:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 09:07:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 09:07:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 09:07:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 09:07:26,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2025-02-08 09:07:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:26,996 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 09:07:26,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 25 states have internal predecessors, (71), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-02-08 09:07:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 09:07:26,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 09:07:26,998 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-02-08 09:07:26,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-02-08 09:07:26,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-02-08 09:07:26,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-02-08 09:07:26,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-02-08 09:07:26,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-02-08 09:07:27,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 09:07:27,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:27,208 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-02-08 09:07:27,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 09:07:27,286 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 09:07:27,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 09:07:27 BoogieIcfgContainer [2025-02-08 09:07:27,297 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 09:07:27,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 09:07:27,298 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 09:07:27,298 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 09:07:27,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:24" (3/4) ... [2025-02-08 09:07:27,300 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 09:07:27,305 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-02-08 09:07:27,307 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 09:07:27,307 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 09:07:27,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 09:07:27,361 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 09:07:27,361 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 09:07:27,362 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 09:07:27,363 INFO L158 Benchmark]: Toolchain (without parser) took 4171.17ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 79.3MB in the end (delta: 48.8MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 192.9MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.61ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 106.3MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.07ms. Allocated memory is still 167.8MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: Boogie Preprocessor took 42.88ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: IcfgBuilder took 336.75ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 89.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: TraceAbstraction took 3291.61ms. Allocated memory is still 167.8MB. Free memory was 89.3MB in the beginning and 84.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:27,364 INFO L158 Benchmark]: Witness Printer took 64.15ms. Allocated memory is still 167.8MB. Free memory was 84.8MB in the beginning and 79.3MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 09:07:27,365 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 192.9MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.61ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 106.3MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.07ms. Allocated memory is still 167.8MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.88ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 336.75ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 89.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3291.61ms. Allocated memory is still 167.8MB. Free memory was 89.3MB in the beginning and 84.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 64.15ms. Allocated memory is still 167.8MB. Free memory was 84.8MB in the beginning and 79.3MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 203 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 58 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 635 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 289/452 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 6 specifications checked. All of them hold - InvariantResult [Line: 767]: Location Invariant Derived location invariant: ((((len <= 10) && (1 <= i)) && (i <= 2147483642)) || ((len <= 10) && (i == 0))) RESULT: Ultimate proved your program to be correct! [2025-02-08 09:07:27,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE