./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/logname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/busybox-1.22.0/logname-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:26:19,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:26:19,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 13:26:19,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:26:19,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:26:19,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:26:19,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:26:19,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:26:19,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:26:19,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:26:19,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:26:19,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:26:19,167 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:26:19,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:26:19,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:26:19,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:26:19,169 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af [2025-02-08 13:26:19,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:26:19,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:26:19,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:26:19,385 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:26:19,385 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:26:19,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-08 13:26:20,587 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a6346e0b3/c9695713f4dc45e99824c5656bf39f69/FLAGa8df3dfa7 [2025-02-08 13:26:20,982 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:26:20,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-08 13:26:21,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a6346e0b3/c9695713f4dc45e99824c5656bf39f69/FLAGa8df3dfa7 [2025-02-08 13:26:21,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a6346e0b3/c9695713f4dc45e99824c5656bf39f69 [2025-02-08 13:26:21,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:26:21,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:26:21,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:26:21,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:26:21,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:26:21,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:21,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adabe3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21, skipping insertion in model container [2025-02-08 13:26:21,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:21,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:26:21,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:26:21,786 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:26:21,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:26:21,941 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-08 13:26:21,947 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:26:21,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21 WrapperNode [2025-02-08 13:26:21,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:26:21,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:26:21,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:26:21,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:26:21,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:21,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,053 INFO L138 Inliner]: procedures = 594, calls = 490, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 807 [2025-02-08 13:26:22,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:26:22,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:26:22,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:26:22,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:26:22,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,095 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-08 13:26:22,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:26:22,148 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:26:22,148 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:26:22,148 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:26:22,149 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (1/1) ... [2025-02-08 13:26:22,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:26:22,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:22,181 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 13:26:22,184 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 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:26:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-08 13:26:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 13:26:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 13:26:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 13:26:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-08 13:26:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-02-08 13:26:22,206 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-02-08 13:26:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 13:26:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 13:26:22,454 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:26:22,456 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:26:22,977 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2348: full_write_#t~ret106#1 := safe_write_#res#1;havoc safe_write_#t~ret112#1, safe_write_#t~mem113#1, safe_write_~fd#1, safe_write_~buf#1.base, safe_write_~buf#1.offset, safe_write_~count#1, safe_write_~n~0#1, safe_write_~tmp_if_expr$1~0#1;havoc safe_write_#in~fd#1, safe_write_#in~buf#1.base, safe_write_#in~buf#1.offset, safe_write_#in~count#1;assume { :end_inline_safe_write } true;assume -9223372036854775808 <= full_write_#t~ret106#1 && full_write_#t~ret106#1 <= 9223372036854775807;full_write_~cc~0#1 := full_write_#t~ret106#1;havoc full_write_#t~ret106#1; [2025-02-08 13:26:22,977 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2406: havoc getlogin_r_~ret~0#1; [2025-02-08 13:26:22,977 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2349: assume full_write_~cc~0#1 < 0; [2025-02-08 13:26:22,978 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2349: assume !(full_write_~cc~0#1 < 0); [2025-02-08 13:26:22,978 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2383-1: assume 0 != safe_write_~tmp_if_expr$1~0#1 % 256; [2025-02-08 13:26:22,978 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2383-1: assume !(0 != safe_write_~tmp_if_expr$1~0#1 % 256); [2025-02-08 13:26:22,981 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2351: assume !(0 == full_write_~total~0#1);full_write_#res#1 := full_write_~total~0#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2351: assume !!(0 == full_write_~total~0#1);full_write_#res#1 := full_write_~cc~0#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2385: safe_write_#t~ret112#1 := write_#res#1;havoc write_#t~nondet154#1, write_~fildes#1, write_~buf#1.base, write_~buf#1.offset, write_~nbyte#1, write_~ret~2#1;havoc write_#in~fildes#1, write_#in~buf#1.base, write_#in~buf#1.offset, write_#in~nbyte#1;assume { :end_inline_write } true;assume -9223372036854775808 <= safe_write_#t~ret112#1 && safe_write_#t~ret112#1 <= 9223372036854775807;safe_write_~n~0#1 := safe_write_#t~ret112#1;havoc safe_write_#t~ret112#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2386: assume safe_write_~n~0#1 < 0;call safe_write_#t~mem113#1 := read~int(~bb_errno~0.base, ~bb_errno~0.offset, 4);safe_write_~tmp_if_expr$1~0#1 := (if 0 == (if 0 != (if 4 == safe_write_#t~mem113#1 then 1 else 0) then 1 else 0) then 0 else 1); [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2386: assume !(safe_write_~n~0#1 < 0);safe_write_~tmp_if_expr$1~0#1 := 0; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2371: havoc __main_~return_value_fflush_all$1~0#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2330: bb_verror_msg_#t~ret101#1 := full_write_#res#1;havoc full_write_#t~ret106#1, full_write_~fd#1, full_write_~buf#1.base, full_write_~buf#1.offset, full_write_~len#1, full_write_~cc~0#1, full_write_~total~0#1;havoc full_write_#in~fd#1, full_write_#in~buf#1.base, full_write_#in~buf#1.offset, full_write_#in~len#1;assume { :end_inline_full_write } true;assume -9223372036854775808 <= bb_verror_msg_#t~ret101#1 && bb_verror_msg_#t~ret101#1 <= 9223372036854775807;havoc bb_verror_msg_#t~mem100#1.base, bb_verror_msg_#t~mem100#1.offset;havoc bb_verror_msg_#t~ret101#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2355-1: assume full_write_~total~0#1 + full_write_~cc~0#1 >= -9223372036854775808; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2355-1: assume !(full_write_~total~0#1 + full_write_~cc~0#1 >= -9223372036854775808); [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2355: assume full_write_~total~0#1 + full_write_~cc~0#1 <= 9223372036854775807;full_write_~total~0#1 := full_write_~total~0#1 + full_write_~cc~0#1;full_write_~buf#1.base, full_write_~buf#1.offset := full_write_~buf#1.base, full_write_~buf#1.offset + full_write_~cc~0#1;full_write_~len#1 := full_write_~len#1 - full_write_~cc~0#1; [2025-02-08 13:26:22,982 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2355: assume !(full_write_~total~0#1 + full_write_~cc~0#1 <= 9223372036854775807); [2025-02-08 13:26:23,022 INFO L? ?]: Removed 195 outVars from TransFormulas that were not future-live. [2025-02-08 13:26:23,022 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:26:23,038 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:26:23,039 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:26:23,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:26:23 BoogieIcfgContainer [2025-02-08 13:26:23,039 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:26:23,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:26:23,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:26:23,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:26:23,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:26:21" (1/3) ... [2025-02-08 13:26:23,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9da08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:26:23, skipping insertion in model container [2025-02-08 13:26:23,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:21" (2/3) ... [2025-02-08 13:26:23,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9da08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:26:23, skipping insertion in model container [2025-02-08 13:26:23,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:26:23" (3/3) ... [2025-02-08 13:26:23,049 INFO L128 eAbstractionObserver]: Analyzing ICFG logname-1.i [2025-02-08 13:26:23,058 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:26:23,059 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG logname-1.i that has 4 procedures, 146 locations, 1 initial locations, 12 loop locations, and 34 error locations. [2025-02-08 13:26:23,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 13:26:23,114 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;@6acd3c43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 13:26:23,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2025-02-08 13:26:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 93 states have (on average 1.6774193548387097) internal successors, (156), 132 states have internal predecessors, (156), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 13:26:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-08 13:26:23,122 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:23,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-08 13:26:23,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:23,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:23,128 INFO L85 PathProgramCache]: Analyzing trace with hash 226372, now seen corresponding path program 1 times [2025-02-08 13:26:23,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488207038] [2025-02-08 13:26:23,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:23,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 13:26:23,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 13:26:23,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:23,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:23,660 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 13:26:23,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:23,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488207038] [2025-02-08 13:26:23,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488207038] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:23,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:23,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 13:26:23,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144937029] [2025-02-08 13:26:23,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:23,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:23,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:23,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:23,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:23,686 INFO L87 Difference]: Start difference. First operand has 146 states, 93 states have (on average 1.6774193548387097) internal successors, (156), 132 states have internal predecessors, (156), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 13:26:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:23,722 INFO L93 Difference]: Finished difference Result 208 states and 258 transitions. [2025-02-08 13:26:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2025-02-08 13:26:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:23,729 INFO L225 Difference]: With dead ends: 208 [2025-02-08 13:26:23,729 INFO L226 Difference]: Without dead ends: 60 [2025-02-08 13:26:23,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:23,735 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:23,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-02-08 13:26:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-02-08 13:26:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.5) internal successors, (63), 55 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2025-02-08 13:26:23,765 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 3 [2025-02-08 13:26:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:23,766 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2025-02-08 13:26:23,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 13:26:23,766 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2025-02-08 13:26:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 13:26:23,767 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:23,767 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 13:26:23,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 13:26:23,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:23,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:23,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1845924355, now seen corresponding path program 1 times [2025-02-08 13:26:23,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:23,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407048849] [2025-02-08 13:26:23,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:23,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 13:26:23,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 13:26:23,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:23,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:24,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:24,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407048849] [2025-02-08 13:26:24,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407048849] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:24,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150322086] [2025-02-08 13:26:24,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:24,008 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 13:26:24,010 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 13:26:24,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 13:26:24,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 13:26:24,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:24,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:24,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:24,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:24,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:24,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150322086] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:24,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:24,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2025-02-08 13:26:24,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659386726] [2025-02-08 13:26:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:24,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:26:24,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:24,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:26:24,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:24,290 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:26:24,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:24,329 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2025-02-08 13:26:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:26:24,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2025-02-08 13:26:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:24,331 INFO L225 Difference]: With dead ends: 60 [2025-02-08 13:26:24,331 INFO L226 Difference]: Without dead ends: 59 [2025-02-08 13:26:24,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:24,331 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:24,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 175 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-02-08 13:26:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2025-02-08 13:26:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 54 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:24,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2025-02-08 13:26:24,335 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 6 [2025-02-08 13:26:24,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:24,336 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2025-02-08 13:26:24,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:26:24,336 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2025-02-08 13:26:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 13:26:24,336 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:24,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 13:26:24,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 13:26:24,537 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 13:26:24,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:24,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:24,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1389079994, now seen corresponding path program 1 times [2025-02-08 13:26:24,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766579067] [2025-02-08 13:26:24,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:24,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:24,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 13:26:24,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 13:26:24,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:24,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 13:26:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:24,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766579067] [2025-02-08 13:26:24,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766579067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:24,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:24,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:26:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155523769] [2025-02-08 13:26:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:24,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:24,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:24,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:24,682 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:26:24,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:24,709 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2025-02-08 13:26:24,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:24,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2025-02-08 13:26:24,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:24,714 INFO L225 Difference]: With dead ends: 59 [2025-02-08 13:26:24,714 INFO L226 Difference]: Without dead ends: 58 [2025-02-08 13:26:24,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:24,715 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:24,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-02-08 13:26:24,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2025-02-08 13:26:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.475) internal successors, (59), 51 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2025-02-08 13:26:24,722 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 7 [2025-02-08 13:26:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:24,723 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2025-02-08 13:26:24,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:26:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2025-02-08 13:26:24,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 13:26:24,723 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:24,723 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:24,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 13:26:24,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:24,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1893964491, now seen corresponding path program 1 times [2025-02-08 13:26:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:24,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883429825] [2025-02-08 13:26:24,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:24,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:24,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 13:26:24,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 13:26:24,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:24,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883429825] [2025-02-08 13:26:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883429825] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855815983] [2025-02-08 13:26:24,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:24,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:24,984 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 13:26:24,988 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 13:26:25,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 13:26:25,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 13:26:25,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:25,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:25,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 13:26:25,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 13:26:25,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855815983] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:25,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-08 13:26:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824051132] [2025-02-08 13:26:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:25,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:25,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:25,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:25,228 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:25,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:25,264 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2025-02-08 13:26:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:25,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-02-08 13:26:25,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:25,265 INFO L225 Difference]: With dead ends: 56 [2025-02-08 13:26:25,265 INFO L226 Difference]: Without dead ends: 54 [2025-02-08 13:26:25,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:25,266 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:25,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 65 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-08 13:26:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-02-08 13:26:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.425) internal successors, (57), 49 states have internal predecessors, (57), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2025-02-08 13:26:25,270 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 11 [2025-02-08 13:26:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:25,271 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2025-02-08 13:26:25,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2025-02-08 13:26:25,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 13:26:25,272 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:25,272 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:25,280 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 13:26:25,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:25,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:25,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1416643080, now seen corresponding path program 1 times [2025-02-08 13:26:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131113013] [2025-02-08 13:26:25,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:25,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 13:26:25,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 13:26:25,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:25,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:25,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131113013] [2025-02-08 13:26:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131113013] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642874126] [2025-02-08 13:26:25,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:25,628 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 13:26:25,630 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 13:26:25,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 13:26:25,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 13:26:25,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:25,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:25,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:25,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:25,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:26:25,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642874126] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:25,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:25,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2025-02-08 13:26:25,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759321447] [2025-02-08 13:26:25,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:25,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 13:26:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:25,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 13:26:25,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:25,888 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:25,911 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2025-02-08 13:26:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:25,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2025-02-08 13:26:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:25,912 INFO L225 Difference]: With dead ends: 112 [2025-02-08 13:26:25,912 INFO L226 Difference]: Without dead ends: 63 [2025-02-08 13:26:25,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:25,913 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 4 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:25,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 170 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-02-08 13:26:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2025-02-08 13:26:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.346938775510204) internal successors, (66), 58 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2025-02-08 13:26:25,917 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 12 [2025-02-08 13:26:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:25,917 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2025-02-08 13:26:25,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2025-02-08 13:26:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-08 13:26:25,918 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:25,918 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:25,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 13:26:26,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:26,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:26,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1085304369, now seen corresponding path program 2 times [2025-02-08 13:26:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076274714] [2025-02-08 13:26:26,127 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 13:26:26,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:26,180 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-02-08 13:26:26,199 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 21 statements. [2025-02-08 13:26:26,199 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 13:26:26,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 13:26:26,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:26,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076274714] [2025-02-08 13:26:26,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076274714] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:26,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:26,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 13:26:26,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676827274] [2025-02-08 13:26:26,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:26,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 13:26:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:26,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 13:26:26,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:26,343 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:26,395 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2025-02-08 13:26:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 13:26:26,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-02-08 13:26:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:26,396 INFO L225 Difference]: With dead ends: 63 [2025-02-08 13:26:26,396 INFO L226 Difference]: Without dead ends: 61 [2025-02-08 13:26:26,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:26,396 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 42 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:26,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 154 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:26,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-08 13:26:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-02-08 13:26:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 56 states have internal predecessors, (64), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2025-02-08 13:26:26,404 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 21 [2025-02-08 13:26:26,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:26,404 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2025-02-08 13:26:26,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:26,404 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2025-02-08 13:26:26,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-08 13:26:26,405 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:26,405 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:26,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 13:26:26,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:26,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:26,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1389251657, now seen corresponding path program 1 times [2025-02-08 13:26:26,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:26,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003341472] [2025-02-08 13:26:26,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:26,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:26,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 13:26:26,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 13:26:26,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:26,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 13:26:26,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:26,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003341472] [2025-02-08 13:26:26,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003341472] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:26,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:26,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 13:26:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913950945] [2025-02-08 13:26:26,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:26,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:26,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:26,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:26,567 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:26,595 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2025-02-08 13:26:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2025-02-08 13:26:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:26,596 INFO L225 Difference]: With dead ends: 106 [2025-02-08 13:26:26,597 INFO L226 Difference]: Without dead ends: 64 [2025-02-08 13:26:26,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:26,597 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:26,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 107 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-08 13:26:26,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-02-08 13:26:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 59 states have internal predecessors, (67), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2025-02-08 13:26:26,601 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 26 [2025-02-08 13:26:26,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:26,601 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2025-02-08 13:26:26,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:26,602 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2025-02-08 13:26:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-08 13:26:26,602 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:26,602 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:26,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 13:26:26,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:26,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 896161928, now seen corresponding path program 1 times [2025-02-08 13:26:26,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:26,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632508594] [2025-02-08 13:26:26,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:26,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:26,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 13:26:26,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 13:26:26,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:26,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 13:26:26,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:26,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632508594] [2025-02-08 13:26:26,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632508594] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:26,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528302737] [2025-02-08 13:26:26,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:26,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:26,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:26,783 INFO L229 MonitoredProcess]: Starting monitored process 5 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 13:26:26,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 13:26:26,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 13:26:27,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 13:26:27,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:27,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:27,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 13:26:27,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-08 13:26:27,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:27,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528302737] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:27,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:27,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-08 13:26:27,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20186774] [2025-02-08 13:26:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:27,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:27,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:27,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:27,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:27,054 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:27,082 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2025-02-08 13:26:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-02-08 13:26:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:27,083 INFO L225 Difference]: With dead ends: 64 [2025-02-08 13:26:27,083 INFO L226 Difference]: Without dead ends: 63 [2025-02-08 13:26:27,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:27,084 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:27,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 97 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-02-08 13:26:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2025-02-08 13:26:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2025-02-08 13:26:27,088 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 29 [2025-02-08 13:26:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:27,088 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2025-02-08 13:26:27,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2025-02-08 13:26:27,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-08 13:26:27,089 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:27,089 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:27,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 13:26:27,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-08 13:26:27,293 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:27,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:27,294 INFO L85 PathProgramCache]: Analyzing trace with hash 896162088, now seen corresponding path program 1 times [2025-02-08 13:26:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:27,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903629258] [2025-02-08 13:26:27,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:27,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 13:26:27,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 13:26:27,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:27,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 13:26:27,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:27,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903629258] [2025-02-08 13:26:27,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903629258] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:27,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912281599] [2025-02-08 13:26:27,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:27,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:27,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:27,482 INFO L229 MonitoredProcess]: Starting monitored process 6 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 13:26:27,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 13:26:27,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 13:26:27,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 13:26:27,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:27,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:27,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 13:26:27,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 13:26:27,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 13:26:27,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912281599] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:27,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:27,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2025-02-08 13:26:27,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114826985] [2025-02-08 13:26:27,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:27,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 13:26:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:27,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 13:26:27,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-02-08 13:26:27,865 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 13:26:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:27,957 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2025-02-08 13:26:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 13:26:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2025-02-08 13:26:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:27,959 INFO L225 Difference]: With dead ends: 129 [2025-02-08 13:26:27,959 INFO L226 Difference]: Without dead ends: 80 [2025-02-08 13:26:27,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-02-08 13:26:27,960 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:27,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 284 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 13:26:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-02-08 13:26:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-02-08 13:26:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 75 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:27,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2025-02-08 13:26:27,965 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 29 [2025-02-08 13:26:27,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:27,965 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2025-02-08 13:26:27,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 13:26:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2025-02-08 13:26:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-08 13:26:27,966 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:27,966 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:27,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 13:26:28,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:28,167 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:28,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1914720486, now seen corresponding path program 1 times [2025-02-08 13:26:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:28,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209742295] [2025-02-08 13:26:28,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:28,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:28,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 13:26:28,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 13:26:28,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:28,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:28,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:28,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209742295] [2025-02-08 13:26:28,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209742295] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:28,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:28,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:26:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265322802] [2025-02-08 13:26:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:28,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:28,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:28,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:28,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,318 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:28,351 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2025-02-08 13:26:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:28,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2025-02-08 13:26:28,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:28,352 INFO L225 Difference]: With dead ends: 91 [2025-02-08 13:26:28,352 INFO L226 Difference]: Without dead ends: 90 [2025-02-08 13:26:28,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,352 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:28,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 101 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-02-08 13:26:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2025-02-08 13:26:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 84 states have internal predecessors, (95), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2025-02-08 13:26:28,357 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 48 [2025-02-08 13:26:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:28,358 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2025-02-08 13:26:28,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2025-02-08 13:26:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-08 13:26:28,359 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:28,359 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:28,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 13:26:28,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:28,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1914725451, now seen corresponding path program 1 times [2025-02-08 13:26:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523008508] [2025-02-08 13:26:28,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:28,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 13:26:28,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 13:26:28,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:28,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:28,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523008508] [2025-02-08 13:26:28,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523008508] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:28,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:28,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:26:28,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391551852] [2025-02-08 13:26:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:28,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:28,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:28,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:28,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,523 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:28,551 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2025-02-08 13:26:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:28,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2025-02-08 13:26:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:28,552 INFO L225 Difference]: With dead ends: 89 [2025-02-08 13:26:28,552 INFO L226 Difference]: Without dead ends: 88 [2025-02-08 13:26:28,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,552 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:28,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-02-08 13:26:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2025-02-08 13:26:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 79 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2025-02-08 13:26:28,560 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 48 [2025-02-08 13:26:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:28,561 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2025-02-08 13:26:28,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2025-02-08 13:26:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-08 13:26:28,563 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:28,564 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:28,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 13:26:28,564 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:28,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash -836274221, now seen corresponding path program 1 times [2025-02-08 13:26:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:28,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495550859] [2025-02-08 13:26:28,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:28,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:28,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 13:26:28,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 13:26:28,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:28,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:28,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495550859] [2025-02-08 13:26:28,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495550859] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:28,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:26:28,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:26:28,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412478106] [2025-02-08 13:26:28,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:28,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:26:28,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:28,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:26:28,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,731 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:28,746 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2025-02-08 13:26:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:26:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2025-02-08 13:26:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:28,747 INFO L225 Difference]: With dead ends: 89 [2025-02-08 13:26:28,747 INFO L226 Difference]: Without dead ends: 87 [2025-02-08 13:26:28,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:26:28,748 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:28,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 100 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-02-08 13:26:28,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2025-02-08 13:26:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 82 states have internal predecessors, (93), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2025-02-08 13:26:28,752 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 54 [2025-02-08 13:26:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:28,752 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2025-02-08 13:26:28,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2025-02-08 13:26:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-08 13:26:28,753 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:28,753 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:28,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 13:26:28,753 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:28,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:28,753 INFO L85 PathProgramCache]: Analyzing trace with hash 252423021, now seen corresponding path program 1 times [2025-02-08 13:26:28,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:28,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102007064] [2025-02-08 13:26:28,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:28,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:28,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-08 13:26:28,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 13:26:28,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:28,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-02-08 13:26:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102007064] [2025-02-08 13:26:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102007064] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525025150] [2025-02-08 13:26:28,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:28,940 INFO L229 MonitoredProcess]: Starting monitored process 7 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 13:26:28,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 13:26:29,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-08 13:26:29,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 13:26:29,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:29,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:29,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:29,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-02-08 13:26:29,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-02-08 13:26:29,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525025150] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:29,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:29,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-08 13:26:29,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850094160] [2025-02-08 13:26:29,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:29,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 13:26:29,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:29,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 13:26:29,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:29,329 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:29,370 INFO L93 Difference]: Finished difference Result 150 states and 174 transitions. [2025-02-08 13:26:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2025-02-08 13:26:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:29,371 INFO L225 Difference]: With dead ends: 150 [2025-02-08 13:26:29,371 INFO L226 Difference]: Without dead ends: 105 [2025-02-08 13:26:29,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:29,372 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:29,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 153 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-08 13:26:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-08 13:26:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.15625) internal successors, (111), 100 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2025-02-08 13:26:29,377 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 55 [2025-02-08 13:26:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:29,377 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2025-02-08 13:26:29,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:29,377 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2025-02-08 13:26:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 13:26:29,378 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:29,378 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 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 13:26:29,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 13:26:29,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 13:26:29,579 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:29,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:29,580 INFO L85 PathProgramCache]: Analyzing trace with hash -223079549, now seen corresponding path program 1 times [2025-02-08 13:26:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994981911] [2025-02-08 13:26:29,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:29,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 13:26:29,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 13:26:29,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:29,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994981911] [2025-02-08 13:26:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994981911] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173001928] [2025-02-08 13:26:29,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:29,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:29,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:29,947 INFO L229 MonitoredProcess]: Starting monitored process 8 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 13:26:29,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 13:26:30,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 13:26:30,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 13:26:30,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:30,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:30,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 13:26:30,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:30,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:30,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173001928] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:30,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:30,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-02-08 13:26:30,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185217766] [2025-02-08 13:26:30,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:30,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 13:26:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:30,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 13:26:30,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 13:26:30,313 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:30,343 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2025-02-08 13:26:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:30,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2025-02-08 13:26:30,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:30,344 INFO L225 Difference]: With dead ends: 122 [2025-02-08 13:26:30,344 INFO L226 Difference]: Without dead ends: 105 [2025-02-08 13:26:30,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 13:26:30,345 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 10 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:30,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 184 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:30,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-08 13:26:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-08 13:26:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 100 states have internal predecessors, (110), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2025-02-08 13:26:30,350 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 58 [2025-02-08 13:26:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:30,350 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2025-02-08 13:26:30,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:30,350 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2025-02-08 13:26:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-08 13:26:30,350 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:30,351 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:30,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 13:26:30,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:30,552 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:30,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:30,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1660087557, now seen corresponding path program 1 times [2025-02-08 13:26:30,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:30,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746437234] [2025-02-08 13:26:30,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:30,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 13:26:30,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 13:26:30,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:30,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:30,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:30,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746437234] [2025-02-08 13:26:30,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746437234] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:30,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581701318] [2025-02-08 13:26:30,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:30,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:30,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:30,690 INFO L229 MonitoredProcess]: Starting monitored process 9 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 13:26:30,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 13:26:30,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 13:26:30,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 13:26:30,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:30,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:30,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:30,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:31,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:31,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581701318] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:31,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:31,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-08 13:26:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607494758] [2025-02-08 13:26:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:31,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:26:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:31,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:26:31,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:31,007 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:31,022 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2025-02-08 13:26:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:26:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2025-02-08 13:26:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:31,023 INFO L225 Difference]: With dead ends: 105 [2025-02-08 13:26:31,023 INFO L226 Difference]: Without dead ends: 104 [2025-02-08 13:26:31,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:26:31,023 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:31,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 98 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-02-08 13:26:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-02-08 13:26:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 99 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2025-02-08 13:26:31,028 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 57 [2025-02-08 13:26:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2025-02-08 13:26:31,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2025-02-08 13:26:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 13:26:31,029 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:31,029 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:31,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 13:26:31,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-08 13:26:31,230 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:31,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:31,230 INFO L85 PathProgramCache]: Analyzing trace with hash -76893163, now seen corresponding path program 1 times [2025-02-08 13:26:31,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:31,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355759023] [2025-02-08 13:26:31,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:31,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:31,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 13:26:31,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 13:26:31,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:31,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:31,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:31,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355759023] [2025-02-08 13:26:31,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355759023] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707155971] [2025-02-08 13:26:31,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:31,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:31,386 INFO L229 MonitoredProcess]: Starting monitored process 10 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 13:26:31,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 13:26:31,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 13:26:31,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 13:26:31,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:31,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:31,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:31,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:31,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-08 13:26:31,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707155971] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:31,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:31,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-02-08 13:26:31,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570218323] [2025-02-08 13:26:31,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:31,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 13:26:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:31,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 13:26:31,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:31,737 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:31,762 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2025-02-08 13:26:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:31,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2025-02-08 13:26:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:31,764 INFO L225 Difference]: With dead ends: 114 [2025-02-08 13:26:31,764 INFO L226 Difference]: Without dead ends: 113 [2025-02-08 13:26:31,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 13:26:31,765 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:31,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 13:26:31,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-02-08 13:26:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2025-02-08 13:26:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 105 states have (on average 1.1523809523809523) internal successors, (121), 108 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2025-02-08 13:26:31,771 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 58 [2025-02-08 13:26:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:31,772 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2025-02-08 13:26:31,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 13:26:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2025-02-08 13:26:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 13:26:31,772 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:31,772 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 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 13:26:31,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 13:26:31,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:31,973 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:31,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:31,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1652711499, now seen corresponding path program 1 times [2025-02-08 13:26:31,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:31,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759214751] [2025-02-08 13:26:31,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:31,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:32,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 13:26:32,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 13:26:32,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:32,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-08 13:26:32,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:32,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759214751] [2025-02-08 13:26:32,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759214751] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:32,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021682068] [2025-02-08 13:26:32,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:32,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:32,248 INFO L229 MonitoredProcess]: Starting monitored process 11 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 13:26:32,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 13:26:32,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 13:26:32,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 13:26:32,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:32,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:32,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 13:26:32,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:32,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 13:26:32,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021682068] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:26:32,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 13:26:32,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-02-08 13:26:32,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320512358] [2025-02-08 13:26:32,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:26:32,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 13:26:32,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:32,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 13:26:32,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 13:26:32,634 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:32,701 INFO L93 Difference]: Finished difference Result 156 states and 176 transitions. [2025-02-08 13:26:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:32,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2025-02-08 13:26:32,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:32,702 INFO L225 Difference]: With dead ends: 156 [2025-02-08 13:26:32,703 INFO L226 Difference]: Without dead ends: 113 [2025-02-08 13:26:32,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 13:26:32,703 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 42 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:32,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 173 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 13:26:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-02-08 13:26:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2025-02-08 13:26:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 108 states have internal predecessors, (120), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2025-02-08 13:26:32,708 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 61 [2025-02-08 13:26:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:32,708 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2025-02-08 13:26:32,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2025-02-08 13:26:32,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-08 13:26:32,709 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:32,709 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:26:32,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 13:26:32,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-08 13:26:32,913 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:32,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:32,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1415467773, now seen corresponding path program 2 times [2025-02-08 13:26:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:32,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629123657] [2025-02-08 13:26:32,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 13:26:32,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:32,960 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-08 13:26:32,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 73 statements. [2025-02-08 13:26:32,967 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 13:26:32,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-08 13:26:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:33,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629123657] [2025-02-08 13:26:33,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629123657] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810019510] [2025-02-08 13:26:33,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 13:26:33,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:33,019 INFO L229 MonitoredProcess]: Starting monitored process 12 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 13:26:33,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 13:26:33,248 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-08 13:26:33,332 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 73 statements. [2025-02-08 13:26:33,332 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 13:26:33,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:33,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 13:26:33,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-08 13:26:33,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-08 13:26:33,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810019510] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:33,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:33,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-08 13:26:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164501842] [2025-02-08 13:26:33,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:33,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 13:26:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:33,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 13:26:33,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 13:26:33,416 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:33,483 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2025-02-08 13:26:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:26:33,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2025-02-08 13:26:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:33,485 INFO L225 Difference]: With dead ends: 113 [2025-02-08 13:26:33,485 INFO L226 Difference]: Without dead ends: 112 [2025-02-08 13:26:33,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-08 13:26:33,486 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 28 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:33,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 13:26:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-02-08 13:26:33,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 97. [2025-02-08 13:26:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2025-02-08 13:26:33,490 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 73 [2025-02-08 13:26:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:33,491 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2025-02-08 13:26:33,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 13:26:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2025-02-08 13:26:33,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-02-08 13:26:33,491 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:33,491 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1] [2025-02-08 13:26:33,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 13:26:33,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 13:26:33,692 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:33,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2020047981, now seen corresponding path program 1 times [2025-02-08 13:26:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:33,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322942278] [2025-02-08 13:26:33,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:33,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:33,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-02-08 13:26:33,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-02-08 13:26:33,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:33,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2025-02-08 13:26:33,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:33,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322942278] [2025-02-08 13:26:33,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322942278] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:33,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142000360] [2025-02-08 13:26:33,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:26:33,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:33,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:33,890 INFO L229 MonitoredProcess]: Starting monitored process 13 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 13:26:33,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 13:26:34,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-02-08 13:26:34,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-02-08 13:26:34,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:26:34,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:34,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 13:26:34,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-08 13:26:34,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 13:26:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2025-02-08 13:26:34,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142000360] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 13:26:34,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 13:26:34,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-02-08 13:26:34,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729612645] [2025-02-08 13:26:34,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 13:26:34,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 13:26:34,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:26:34,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 13:26:34,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-08 13:26:34,326 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 13:26:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 13:26:34,389 INFO L93 Difference]: Finished difference Result 174 states and 200 transitions. [2025-02-08 13:26:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 13:26:34,389 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2025-02-08 13:26:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 13:26:34,390 INFO L225 Difference]: With dead ends: 174 [2025-02-08 13:26:34,390 INFO L226 Difference]: Without dead ends: 115 [2025-02-08 13:26:34,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-08 13:26:34,391 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 4 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 13:26:34,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 147 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 13:26:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-02-08 13:26:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2025-02-08 13:26:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 108 states have (on average 1.1203703703703705) internal successors, (121), 110 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 13:26:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2025-02-08 13:26:34,397 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 77 [2025-02-08 13:26:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 13:26:34,398 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2025-02-08 13:26:34,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 13:26:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2025-02-08 13:26:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-08 13:26:34,399 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 13:26:34,399 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1] [2025-02-08 13:26:34,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 13:26:34,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:34,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 13:26:34,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:26:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash -294597235, now seen corresponding path program 2 times [2025-02-08 13:26:34,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:26:34,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418408261] [2025-02-08 13:26:34,601 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 13:26:34,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:26:34,650 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-02-08 13:26:35,089 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-02-08 13:26:35,089 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 13:26:35,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-02-08 13:26:38,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:26:38,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418408261] [2025-02-08 13:26:38,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418408261] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 13:26:38,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731125283] [2025-02-08 13:26:38,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 13:26:38,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 13:26:38,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:26:38,855 INFO L229 MonitoredProcess]: Starting monitored process 14 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 13:26:38,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 13:26:39,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-02-08 13:26:39,273 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-02-08 13:26:39,273 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 13:26:39,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:26:39,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 80 conjuncts are in the unsatisfiable core [2025-02-08 13:26:39,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 13:26:39,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 13:26:39,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-02-08 13:26:39,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-02-08 13:26:39,340 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-02-08 13:26:39,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-02-08 13:26:39,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 84 [2025-02-08 13:26:39,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,400 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2025-02-08 13:26:39,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2025-02-08 13:26:39,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 116 [2025-02-08 13:26:39,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 53 [2025-02-08 13:26:39,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,433 INFO L349 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2025-02-08 13:26:39,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 59 [2025-02-08 13:26:39,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2025-02-08 13:26:39,463 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-02-08 13:26:39,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2025-02-08 13:26:39,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 110 [2025-02-08 13:26:39,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 13:26:39,530 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,572 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,618 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,662 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,703 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,743 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,786 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,852 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,885 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,925 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-08 13:26:39,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2025-02-08 13:26:39,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-02-08 13:26:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-08 13:26:39,997 INFO L312 TraceCheckSpWp]: Computing backward predicates...