./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/uthash-2.0.2/uthash_OAT_test6-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:20:08,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:20:08,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:20:08,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:20:08,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:20:08,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:20:08,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:20:08,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:20:08,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:20:08,765 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:20:08,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:20:08,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:20:08,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:20:08,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:20:08,766 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:20:08,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:20:08,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:20:08,768 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:20:08,769 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:20:08,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:20:08,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:20:08,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:20:08,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:20:08,770 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2025-02-06 18:20:08,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:20:08,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:20:08,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:20:08,992 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:20:08,993 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:20:08,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 18:20:10,167 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9802613/b99219baac0e40a3a69ebfc53e89a5a7/FLAGeb15a0237 [2025-02-06 18:20:10,464 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:20:10,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 18:20:10,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9802613/b99219baac0e40a3a69ebfc53e89a5a7/FLAGeb15a0237 [2025-02-06 18:20:10,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9802613/b99219baac0e40a3a69ebfc53e89a5a7 [2025-02-06 18:20:10,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:20:10,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:20:10,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:20:10,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:20:10,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:20:10,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:20:10" (1/1) ... [2025-02-06 18:20:10,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d408809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:10, skipping insertion in model container [2025-02-06 18:20:10,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:20:10" (1/1) ... [2025-02-06 18:20:10,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:20:10,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:20:10,930 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:20:11,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:20:11,077 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:20:11,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11 WrapperNode [2025-02-06 18:20:11,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:20:11,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:20:11,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:20:11,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:20:11,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,138 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1442 [2025-02-06 18:20:11,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:20:11,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:20:11,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:20:11,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:20:11,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,201 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2025-02-06 18:20:11,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:20:11,267 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:20:11,267 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:20:11,267 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:20:11,268 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (1/1) ... [2025-02-06 18:20:11,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:20:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:11,295 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) [2025-02-06 18:20:11,302 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 [2025-02-06 18:20:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 18:20:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 18:20:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:20:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 18:20:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-02-06 18:20:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 18:20:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-02-06 18:20:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 18:20:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-02-06 18:20:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-02-06 18:20:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:20:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:20:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:20:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:20:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:20:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:20:11,502 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:20:11,504 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:20:11,547 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-02-06 18:20:12,349 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-02-06 18:20:12,349 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-02-06 18:20:12,349 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 18:20:12,410 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2025-02-06 18:20:12,410 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:20:12,487 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:20:12,487 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-06 18:20:12,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:20:12 BoogieIcfgContainer [2025-02-06 18:20:12,487 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:20:12,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:20:12,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:20:12,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:20:12,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:20:10" (1/3) ... [2025-02-06 18:20:12,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b54ed8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:20:12, skipping insertion in model container [2025-02-06 18:20:12,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:20:11" (2/3) ... [2025-02-06 18:20:12,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b54ed8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:20:12, skipping insertion in model container [2025-02-06 18:20:12,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:20:12" (3/3) ... [2025-02-06 18:20:12,493 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2025-02-06 18:20:12,502 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:20:12,503 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test6-1.i that has 6 procedures, 460 locations, 1 initial locations, 36 loop locations, and 14 error locations. [2025-02-06 18:20:12,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:20:12,560 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;@6d4609ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:20:12,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-02-06 18:20:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 422 states have (on average 1.6018957345971565) internal successors, (676), 440 states have internal predecessors, (676), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 18:20:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 18:20:12,570 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:12,570 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:12,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:12,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:12,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1555741828, now seen corresponding path program 1 times [2025-02-06 18:20:12,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:12,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234189250] [2025-02-06 18:20:12,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:12,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:12,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:20:12,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:20:12,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:12,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:12,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:12,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234189250] [2025-02-06 18:20:12,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234189250] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:12,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:12,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:20:12,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226883401] [2025-02-06 18:20:12,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:12,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 18:20:12,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:12,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 18:20:12,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 18:20:12,734 INFO L87 Difference]: Start difference. First operand has 460 states, 422 states have (on average 1.6018957345971565) internal successors, (676), 440 states have internal predecessors, (676), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-02-06 18:20:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:12,810 INFO L93 Difference]: Finished difference Result 913 states and 1427 transitions. [2025-02-06 18:20:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 18:20:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2025-02-06 18:20:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:12,818 INFO L225 Difference]: With dead ends: 913 [2025-02-06 18:20:12,818 INFO L226 Difference]: Without dead ends: 441 [2025-02-06 18:20:12,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 18:20:12,822 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:12,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 597 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 18:20:12,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2025-02-06 18:20:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2025-02-06 18:20:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 413 states have (on average 1.450363196125908) internal successors, (599), 427 states have internal predecessors, (599), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 18:20:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 619 transitions. [2025-02-06 18:20:12,874 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 619 transitions. Word has length 8 [2025-02-06 18:20:12,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:12,875 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 619 transitions. [2025-02-06 18:20:12,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-02-06 18:20:12,875 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 619 transitions. [2025-02-06 18:20:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 18:20:12,875 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:12,875 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:12,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:20:12,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:12,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1555740867, now seen corresponding path program 1 times [2025-02-06 18:20:12,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:12,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340393760] [2025-02-06 18:20:12,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:12,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:20:12,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:20:12,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:12,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 18:20:12,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133914809] [2025-02-06 18:20:12,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:12,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:12,932 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) [2025-02-06 18:20:12,932 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 [2025-02-06 18:20:13,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:20:13,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:20:13,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:13,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:13,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:20:13,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:13,120 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 11 treesize of output 7 [2025-02-06 18:20:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:13,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340393760] [2025-02-06 18:20:13,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 18:20:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133914809] [2025-02-06 18:20:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133914809] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:13,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:13,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:20:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890819990] [2025-02-06 18:20:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:13,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:13,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:13,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:20:13,149 INFO L87 Difference]: Start difference. First operand 441 states and 619 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-06 18:20:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:13,379 INFO L93 Difference]: Finished difference Result 848 states and 1205 transitions. [2025-02-06 18:20:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:13,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2025-02-06 18:20:13,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:13,382 INFO L225 Difference]: With dead ends: 848 [2025-02-06 18:20:13,382 INFO L226 Difference]: Without dead ends: 846 [2025-02-06 18:20:13,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:13,383 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 560 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:13,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1648 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2025-02-06 18:20:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 448. [2025-02-06 18:20:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 420 states have (on average 1.4452380952380952) internal successors, (607), 434 states have internal predecessors, (607), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 18:20:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 627 transitions. [2025-02-06 18:20:13,403 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 627 transitions. Word has length 8 [2025-02-06 18:20:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:13,403 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 627 transitions. [2025-02-06 18:20:13,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-06 18:20:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 627 transitions. [2025-02-06 18:20:13,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-06 18:20:13,404 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:13,404 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:13,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:20:13,612 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 [2025-02-06 18:20:13,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:13,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1997843577, now seen corresponding path program 1 times [2025-02-06 18:20:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211138464] [2025-02-06 18:20:13,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:13,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 18:20:13,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 18:20:13,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:13,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:13,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:13,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211138464] [2025-02-06 18:20:13,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211138464] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:13,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:13,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:20:13,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179076063] [2025-02-06 18:20:13,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:13,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:13,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:13,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:13,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:20:13,890 INFO L87 Difference]: Start difference. First operand 448 states and 627 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:20:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:14,008 INFO L93 Difference]: Finished difference Result 845 states and 1178 transitions. [2025-02-06 18:20:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:20:14,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-06 18:20:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:14,011 INFO L225 Difference]: With dead ends: 845 [2025-02-06 18:20:14,011 INFO L226 Difference]: Without dead ends: 406 [2025-02-06 18:20:14,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:14,012 INFO L435 NwaCegarLoop]: 485 mSDtfsCounter, 30 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:14,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1436 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-02-06 18:20:14,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-02-06 18:20:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 378 states have (on average 1.402116402116402) internal successors, (530), 392 states have internal predecessors, (530), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 18:20:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 550 transitions. [2025-02-06 18:20:14,023 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 550 transitions. Word has length 64 [2025-02-06 18:20:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:14,023 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 550 transitions. [2025-02-06 18:20:14,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:20:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 550 transitions. [2025-02-06 18:20:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-06 18:20:14,025 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:14,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:14,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:20:14,025 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash 385713422, now seen corresponding path program 1 times [2025-02-06 18:20:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037463472] [2025-02-06 18:20:14,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:14,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:14,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 18:20:14,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 18:20:14,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:14,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:14,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:14,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037463472] [2025-02-06 18:20:14,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037463472] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:14,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:14,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:20:14,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599548455] [2025-02-06 18:20:14,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:14,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:14,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:14,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:14,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:20:14,199 INFO L87 Difference]: Start difference. First operand 406 states and 550 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:20:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:14,371 INFO L93 Difference]: Finished difference Result 733 states and 1003 transitions. [2025-02-06 18:20:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:14,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-06 18:20:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:14,377 INFO L225 Difference]: With dead ends: 733 [2025-02-06 18:20:14,377 INFO L226 Difference]: Without dead ends: 729 [2025-02-06 18:20:14,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:14,378 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 379 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:14,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1487 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2025-02-06 18:20:14,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 721. [2025-02-06 18:20:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 690 states have (on average 1.4101449275362319) internal successors, (973), 705 states have internal predecessors, (973), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 18:20:14,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 999 transitions. [2025-02-06 18:20:14,401 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 999 transitions. Word has length 64 [2025-02-06 18:20:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:14,401 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 999 transitions. [2025-02-06 18:20:14,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:20:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 999 transitions. [2025-02-06 18:20:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 18:20:14,406 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:14,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:14,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:20:14,406 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:14,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1985567201, now seen corresponding path program 1 times [2025-02-06 18:20:14,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:14,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404161761] [2025-02-06 18:20:14,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:14,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:14,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 18:20:14,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 18:20:14,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:14,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:14,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:14,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404161761] [2025-02-06 18:20:14,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404161761] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:14,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:14,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:20:14,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857139928] [2025-02-06 18:20:14,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:14,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:14,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:14,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:20:14,613 INFO L87 Difference]: Start difference. First operand 721 states and 999 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-02-06 18:20:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:14,783 INFO L93 Difference]: Finished difference Result 1687 states and 2382 transitions. [2025-02-06 18:20:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:14,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 69 [2025-02-06 18:20:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:14,788 INFO L225 Difference]: With dead ends: 1687 [2025-02-06 18:20:14,789 INFO L226 Difference]: Without dead ends: 1289 [2025-02-06 18:20:14,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:14,791 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 479 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:14,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1431 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:14,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-02-06 18:20:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 721. [2025-02-06 18:20:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 690 states have (on average 1.4086956521739131) internal successors, (972), 705 states have internal predecessors, (972), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 18:20:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 998 transitions. [2025-02-06 18:20:14,813 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 998 transitions. Word has length 69 [2025-02-06 18:20:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:14,813 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 998 transitions. [2025-02-06 18:20:14,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-02-06 18:20:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 998 transitions. [2025-02-06 18:20:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 18:20:14,814 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:14,814 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:14,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:20:14,815 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:14,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash -306609262, now seen corresponding path program 1 times [2025-02-06 18:20:14,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:14,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867396303] [2025-02-06 18:20:14,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:14,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 18:20:14,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 18:20:14,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:14,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:14,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867396303] [2025-02-06 18:20:14,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867396303] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:20:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183758467] [2025-02-06 18:20:14,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:14,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:20:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:14,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:20:14,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:20:14,957 INFO L87 Difference]: Start difference. First operand 721 states and 998 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:20:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:15,042 INFO L93 Difference]: Finished difference Result 950 states and 1311 transitions. [2025-02-06 18:20:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:15,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2025-02-06 18:20:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:15,046 INFO L225 Difference]: With dead ends: 950 [2025-02-06 18:20:15,046 INFO L226 Difference]: Without dead ends: 948 [2025-02-06 18:20:15,046 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 [2025-02-06 18:20:15,047 INFO L435 NwaCegarLoop]: 501 mSDtfsCounter, 405 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:15,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 998 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2025-02-06 18:20:15,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 938. [2025-02-06 18:20:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 899 states have (on average 1.4160177975528365) internal successors, (1273), 915 states have internal predecessors, (1273), 18 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 18:20:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1309 transitions. [2025-02-06 18:20:15,067 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1309 transitions. Word has length 74 [2025-02-06 18:20:15,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:15,067 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1309 transitions. [2025-02-06 18:20:15,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:20:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1309 transitions. [2025-02-06 18:20:15,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-06 18:20:15,068 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:15,069 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:15,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:20:15,069 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:15,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:15,069 INFO L85 PathProgramCache]: Analyzing trace with hash -320351155, now seen corresponding path program 1 times [2025-02-06 18:20:15,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:15,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785740796] [2025-02-06 18:20:15,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:15,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:15,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 18:20:15,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 18:20:15,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:15,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:15,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:15,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:15,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785740796] [2025-02-06 18:20:15,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785740796] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:15,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980902429] [2025-02-06 18:20:15,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:15,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:15,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:15,409 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) [2025-02-06 18:20:15,410 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 [2025-02-06 18:20:15,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 18:20:15,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 18:20:15,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:15,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:15,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:20:15,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:15,666 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:15,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980902429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:15,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:15,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-02-06 18:20:15,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329912577] [2025-02-06 18:20:15,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:15,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:20:15,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:15,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:20:15,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:20:15,667 INFO L87 Difference]: Start difference. First operand 938 states and 1309 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 18:20:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:15,794 INFO L93 Difference]: Finished difference Result 1263 states and 1760 transitions. [2025-02-06 18:20:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:20:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2025-02-06 18:20:15,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:15,798 INFO L225 Difference]: With dead ends: 1263 [2025-02-06 18:20:15,799 INFO L226 Difference]: Without dead ends: 1262 [2025-02-06 18:20:15,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:20:15,799 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 501 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:15,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1411 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:15,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2025-02-06 18:20:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1059. [2025-02-06 18:20:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 1018 states have (on average 1.4086444007858545) internal successors, (1434), 1035 states have internal predecessors, (1434), 20 states have call successors, (20), 10 states have call predecessors, (20), 7 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 18:20:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1474 transitions. [2025-02-06 18:20:15,820 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1474 transitions. Word has length 83 [2025-02-06 18:20:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:15,821 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1474 transitions. [2025-02-06 18:20:15,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 18:20:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1474 transitions. [2025-02-06 18:20:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 18:20:15,822 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:15,822 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:15,828 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 [2025-02-06 18:20:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:16,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:16,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1340951235, now seen corresponding path program 1 times [2025-02-06 18:20:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:16,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756456274] [2025-02-06 18:20:16,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:16,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 18:20:16,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 18:20:16,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:16,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:16,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756456274] [2025-02-06 18:20:16,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756456274] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942314911] [2025-02-06 18:20:16,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:16,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:16,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:16,255 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) [2025-02-06 18:20:16,256 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 [2025-02-06 18:20:16,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 18:20:16,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 18:20:16,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:16,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:16,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 18:20:16,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:16,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:16,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942314911] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:16,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:16,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-02-06 18:20:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549391229] [2025-02-06 18:20:16,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:16,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:20:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:16,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:20:16,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:20:16,715 INFO L87 Difference]: Start difference. First operand 1059 states and 1474 transitions. Second operand has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 18:20:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:17,741 INFO L93 Difference]: Finished difference Result 2848 states and 3946 transitions. [2025-02-06 18:20:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-06 18:20:17,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2025-02-06 18:20:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:17,753 INFO L225 Difference]: With dead ends: 2848 [2025-02-06 18:20:17,753 INFO L226 Difference]: Without dead ends: 2846 [2025-02-06 18:20:17,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2025-02-06 18:20:17,756 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 3126 mSDsluCounter, 7344 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 7899 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:17,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 7899 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 18:20:17,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2025-02-06 18:20:17,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2361. [2025-02-06 18:20:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2273 states have (on average 1.390673119225693) internal successors, (3161), 2292 states have internal predecessors, (3161), 56 states have call successors, (56), 23 states have call predecessors, (56), 18 states have return successors, (79), 45 states have call predecessors, (79), 56 states have call successors, (79) [2025-02-06 18:20:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3296 transitions. [2025-02-06 18:20:17,857 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3296 transitions. Word has length 84 [2025-02-06 18:20:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:17,858 INFO L471 AbstractCegarLoop]: Abstraction has 2361 states and 3296 transitions. [2025-02-06 18:20:17,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 18:20:17,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3296 transitions. [2025-02-06 18:20:17,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-06 18:20:17,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:17,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2025-02-06 18:20:17,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:20:18,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:18,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:18,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1942395127, now seen corresponding path program 1 times [2025-02-06 18:20:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:18,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800446060] [2025-02-06 18:20:18,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:18,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:18,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 18:20:18,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 18:20:18,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:18,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:18,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:18,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800446060] [2025-02-06 18:20:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800446060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:18,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:18,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:20:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587296958] [2025-02-06 18:20:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:18,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:20:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:18,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:20:18,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:20:18,154 INFO L87 Difference]: Start difference. First operand 2361 states and 3296 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 18:20:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:18,328 INFO L93 Difference]: Finished difference Result 4780 states and 6693 transitions. [2025-02-06 18:20:18,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:18,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2025-02-06 18:20:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:18,335 INFO L225 Difference]: With dead ends: 4780 [2025-02-06 18:20:18,335 INFO L226 Difference]: Without dead ends: 2428 [2025-02-06 18:20:18,338 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 [2025-02-06 18:20:18,338 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 297 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:18,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1146 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2025-02-06 18:20:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2417. [2025-02-06 18:20:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2336 states have (on average 1.398972602739726) internal successors, (3268), 2354 states have internal predecessors, (3268), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2025-02-06 18:20:18,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3390 transitions. [2025-02-06 18:20:18,385 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3390 transitions. Word has length 81 [2025-02-06 18:20:18,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:18,385 INFO L471 AbstractCegarLoop]: Abstraction has 2417 states and 3390 transitions. [2025-02-06 18:20:18,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 18:20:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3390 transitions. [2025-02-06 18:20:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-06 18:20:18,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:18,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:18,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:20:18,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:18,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 393798449, now seen corresponding path program 1 times [2025-02-06 18:20:18,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:18,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755465076] [2025-02-06 18:20:18,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:18,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 18:20:18,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 18:20:18,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:18,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:18,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:18,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755465076] [2025-02-06 18:20:18,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755465076] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810165399] [2025-02-06 18:20:18,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:18,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:18,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:18,638 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) [2025-02-06 18:20:18,639 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 [2025-02-06 18:20:18,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 18:20:18,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 18:20:18,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:18,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:18,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:20:18,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:18,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810165399] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:19,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:20:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-02-06 18:20:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160486607] [2025-02-06 18:20:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:19,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:20:19,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:19,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:20:19,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:20:19,116 INFO L87 Difference]: Start difference. First operand 2417 states and 3390 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 18:20:19,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:19,179 INFO L93 Difference]: Finished difference Result 2417 states and 3390 transitions. [2025-02-06 18:20:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:19,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 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 93 [2025-02-06 18:20:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:19,186 INFO L225 Difference]: With dead ends: 2417 [2025-02-06 18:20:19,186 INFO L226 Difference]: Without dead ends: 2416 [2025-02-06 18:20:19,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:20:19,187 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 526 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:19,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 499 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 18:20:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2025-02-06 18:20:19,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2025-02-06 18:20:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2336 states have (on average 1.396832191780822) internal successors, (3263), 2353 states have internal predecessors, (3263), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2025-02-06 18:20:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3385 transitions. [2025-02-06 18:20:19,308 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3385 transitions. Word has length 93 [2025-02-06 18:20:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:19,308 INFO L471 AbstractCegarLoop]: Abstraction has 2416 states and 3385 transitions. [2025-02-06 18:20:19,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 18:20:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3385 transitions. [2025-02-06 18:20:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-06 18:20:19,309 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:19,309 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:19,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:20:19,510 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,SelfDestructingSolverStorable9 [2025-02-06 18:20:19,510 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:19,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:19,511 INFO L85 PathProgramCache]: Analyzing trace with hash -677149972, now seen corresponding path program 1 times [2025-02-06 18:20:19,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:19,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955467885] [2025-02-06 18:20:19,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:19,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 18:20:19,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 18:20:19,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:19,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:19,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:19,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955467885] [2025-02-06 18:20:19,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955467885] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:19,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416176800] [2025-02-06 18:20:19,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:19,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:19,727 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) [2025-02-06 18:20:19,735 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 [2025-02-06 18:20:19,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 18:20:19,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 18:20:19,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:19,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:19,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:20:19,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:20,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:20,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416176800] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:20,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:20,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-02-06 18:20:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979698912] [2025-02-06 18:20:20,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:20,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 18:20:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:20,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 18:20:20,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:20:20,273 INFO L87 Difference]: Start difference. First operand 2416 states and 3385 transitions. Second operand has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-06 18:20:20,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:20,821 INFO L93 Difference]: Finished difference Result 4791 states and 6717 transitions. [2025-02-06 18:20:20,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:20:20,822 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2025-02-06 18:20:20,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:20,837 INFO L225 Difference]: With dead ends: 4791 [2025-02-06 18:20:20,837 INFO L226 Difference]: Without dead ends: 4790 [2025-02-06 18:20:20,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2025-02-06 18:20:20,840 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 2718 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:20,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 2895 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 18:20:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2025-02-06 18:20:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 4409. [2025-02-06 18:20:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4253 states have (on average 1.3961909240536092) internal successors, (5938), 4273 states have internal predecessors, (5938), 99 states have call successors, (99), 50 states have call predecessors, (99), 44 states have return successors, (137), 85 states have call predecessors, (137), 99 states have call successors, (137) [2025-02-06 18:20:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 6174 transitions. [2025-02-06 18:20:20,949 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 6174 transitions. Word has length 94 [2025-02-06 18:20:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:20,949 INFO L471 AbstractCegarLoop]: Abstraction has 4409 states and 6174 transitions. [2025-02-06 18:20:20,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-06 18:20:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 6174 transitions. [2025-02-06 18:20:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-02-06 18:20:20,950 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:20,950 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:20,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:21,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 18:20:21,155 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -732066470, now seen corresponding path program 1 times [2025-02-06 18:20:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299914021] [2025-02-06 18:20:21,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:21,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-02-06 18:20:21,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-02-06 18:20:21,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:21,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-06 18:20:21,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:21,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299914021] [2025-02-06 18:20:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299914021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:21,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:21,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:20:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694681588] [2025-02-06 18:20:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:21,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:21,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:21,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:20:21,382 INFO L87 Difference]: Start difference. First operand 4409 states and 6174 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 18:20:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:21,576 INFO L93 Difference]: Finished difference Result 5937 states and 8375 transitions. [2025-02-06 18:20:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2025-02-06 18:20:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:21,592 INFO L225 Difference]: With dead ends: 5937 [2025-02-06 18:20:21,593 INFO L226 Difference]: Without dead ends: 5935 [2025-02-06 18:20:21,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:21,595 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 391 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:21,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1427 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2025-02-06 18:20:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 4575. [2025-02-06 18:20:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 4410 states have (on average 1.3909297052154195) internal successors, (6134), 4431 states have internal predecessors, (6134), 108 states have call successors, (108), 50 states have call predecessors, (108), 44 states have return successors, (149), 93 states have call predecessors, (149), 108 states have call successors, (149) [2025-02-06 18:20:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 6391 transitions. [2025-02-06 18:20:21,750 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 6391 transitions. Word has length 120 [2025-02-06 18:20:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:21,751 INFO L471 AbstractCegarLoop]: Abstraction has 4575 states and 6391 transitions. [2025-02-06 18:20:21,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 18:20:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 6391 transitions. [2025-02-06 18:20:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 18:20:21,754 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:21,755 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:21,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:20:21,755 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash 520941186, now seen corresponding path program 1 times [2025-02-06 18:20:21,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:21,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353618868] [2025-02-06 18:20:21,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:21,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:21,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 18:20:21,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 18:20:21,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:21,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:22,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353618868] [2025-02-06 18:20:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353618868] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542183812] [2025-02-06 18:20:22,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:22,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:22,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:22,009 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) [2025-02-06 18:20:22,010 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 [2025-02-06 18:20:22,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 18:20:22,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 18:20:22,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:22,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:22,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 18:20:22,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:20:22,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542183812] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:22,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-02-06 18:20:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580473080] [2025-02-06 18:20:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:22,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:20:22,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:22,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:20:22,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:20:22,380 INFO L87 Difference]: Start difference. First operand 4575 states and 6391 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 18:20:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:22,638 INFO L93 Difference]: Finished difference Result 8622 states and 12096 transitions. [2025-02-06 18:20:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:20:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2025-02-06 18:20:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:22,650 INFO L225 Difference]: With dead ends: 8622 [2025-02-06 18:20:22,651 INFO L226 Difference]: Without dead ends: 4367 [2025-02-06 18:20:22,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:20:22,656 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 85 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:22,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2798 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2025-02-06 18:20:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4367. [2025-02-06 18:20:22,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4367 states, 4219 states have (on average 1.3960654183455796) internal successors, (5890), 4238 states have internal predecessors, (5890), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2025-02-06 18:20:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4367 states to 4367 states and 6119 transitions. [2025-02-06 18:20:22,737 INFO L78 Accepts]: Start accepts. Automaton has 4367 states and 6119 transitions. Word has length 127 [2025-02-06 18:20:22,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:22,737 INFO L471 AbstractCegarLoop]: Abstraction has 4367 states and 6119 transitions. [2025-02-06 18:20:22,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 18:20:22,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4367 states and 6119 transitions. [2025-02-06 18:20:22,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 18:20:22,738 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:22,738 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:22,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:20:22,939 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 [2025-02-06 18:20:22,939 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:22,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2077228723, now seen corresponding path program 1 times [2025-02-06 18:20:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12980491] [2025-02-06 18:20:22,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:22,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 18:20:23,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 18:20:23,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:23,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 18:20:23,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:23,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12980491] [2025-02-06 18:20:23,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12980491] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:23,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979252479] [2025-02-06 18:20:23,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:23,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:23,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:23,225 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) [2025-02-06 18:20:23,226 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 [2025-02-06 18:20:23,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 18:20:23,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 18:20:23,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:23,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:23,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-06 18:20:23,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:23,512 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 11 treesize of output 7 [2025-02-06 18:20:23,525 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 11 treesize of output 7 [2025-02-06 18:20:23,537 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-02-06 18:20:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-06 18:20:23,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:23,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979252479] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:23,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:23,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-02-06 18:20:23,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105720830] [2025-02-06 18:20:23,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:23,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:20:23,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:23,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:20:23,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-02-06 18:20:23,952 INFO L87 Difference]: Start difference. First operand 4367 states and 6119 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:25,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:25,123 INFO L93 Difference]: Finished difference Result 10062 states and 14173 transitions. [2025-02-06 18:20:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:20:25,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2025-02-06 18:20:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:25,144 INFO L225 Difference]: With dead ends: 10062 [2025-02-06 18:20:25,144 INFO L226 Difference]: Without dead ends: 5741 [2025-02-06 18:20:25,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2025-02-06 18:20:25,151 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 603 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:25,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 2950 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 18:20:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2025-02-06 18:20:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 4367. [2025-02-06 18:20:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4367 states, 4219 states have (on average 1.3958283953543493) internal successors, (5889), 4238 states have internal predecessors, (5889), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2025-02-06 18:20:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4367 states to 4367 states and 6118 transitions. [2025-02-06 18:20:25,265 INFO L78 Accepts]: Start accepts. Automaton has 4367 states and 6118 transitions. Word has length 132 [2025-02-06 18:20:25,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:25,265 INFO L471 AbstractCegarLoop]: Abstraction has 4367 states and 6118 transitions. [2025-02-06 18:20:25,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:25,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4367 states and 6118 transitions. [2025-02-06 18:20:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-06 18:20:25,267 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:25,267 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:25,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:25,468 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 [2025-02-06 18:20:25,468 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:25,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:25,469 INFO L85 PathProgramCache]: Analyzing trace with hash 47652111, now seen corresponding path program 1 times [2025-02-06 18:20:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012263453] [2025-02-06 18:20:25,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:25,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-06 18:20:25,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-06 18:20:25,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:25,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 18:20:25,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:25,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012263453] [2025-02-06 18:20:25,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012263453] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:25,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574127400] [2025-02-06 18:20:25,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:25,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:25,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:25,790 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) [2025-02-06 18:20:25,791 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 [2025-02-06 18:20:25,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-06 18:20:26,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-06 18:20:26,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:26,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:26,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 18:20:26,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:20:26,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574127400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-02-06 18:20:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319343250] [2025-02-06 18:20:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:26,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:20:26,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:26,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:20:26,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:20:26,154 INFO L87 Difference]: Start difference. First operand 4367 states and 6118 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 18:20:26,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:26,371 INFO L93 Difference]: Finished difference Result 7003 states and 9809 transitions. [2025-02-06 18:20:26,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:20:26,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 133 [2025-02-06 18:20:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:26,377 INFO L225 Difference]: With dead ends: 7003 [2025-02-06 18:20:26,377 INFO L226 Difference]: Without dead ends: 2721 [2025-02-06 18:20:26,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:20:26,381 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 13 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:26,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3912 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2025-02-06 18:20:26,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2719. [2025-02-06 18:20:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2617 states have (on average 1.395491020252197) internal successors, (3652), 2633 states have internal predecessors, (3652), 54 states have call successors, (54), 38 states have call predecessors, (54), 35 states have return successors, (65), 47 states have call predecessors, (65), 54 states have call successors, (65) [2025-02-06 18:20:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3771 transitions. [2025-02-06 18:20:26,437 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3771 transitions. Word has length 133 [2025-02-06 18:20:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:26,439 INFO L471 AbstractCegarLoop]: Abstraction has 2719 states and 3771 transitions. [2025-02-06 18:20:26,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 18:20:26,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3771 transitions. [2025-02-06 18:20:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 18:20:26,440 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:26,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:26,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 18:20:26,640 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 [2025-02-06 18:20:26,641 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:26,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1417779111, now seen corresponding path program 1 times [2025-02-06 18:20:26,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:26,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939955786] [2025-02-06 18:20:26,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:26,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:26,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 18:20:26,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 18:20:26,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:26,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:20:26,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:26,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939955786] [2025-02-06 18:20:26,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939955786] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:26,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321946365] [2025-02-06 18:20:26,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:26,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:26,996 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) [2025-02-06 18:20:27,002 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 [2025-02-06 18:20:27,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 18:20:27,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 18:20:27,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:27,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:27,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-06 18:20:27,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:27,330 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 11 treesize of output 7 [2025-02-06 18:20:27,367 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 11 treesize of output 7 [2025-02-06 18:20:27,386 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 21 treesize of output 20 [2025-02-06 18:20:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-06 18:20:29,733 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:29,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321946365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:29,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:29,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2025-02-06 18:20:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371908030] [2025-02-06 18:20:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:29,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 18:20:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:29,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 18:20:29,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2025-02-06 18:20:29,734 INFO L87 Difference]: Start difference. First operand 2719 states and 3771 transitions. Second operand has 16 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:31,931 INFO L93 Difference]: Finished difference Result 6314 states and 8820 transitions. [2025-02-06 18:20:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:20:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 135 [2025-02-06 18:20:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:31,938 INFO L225 Difference]: With dead ends: 6314 [2025-02-06 18:20:31,938 INFO L226 Difference]: Without dead ends: 3641 [2025-02-06 18:20:31,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2025-02-06 18:20:31,942 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 783 mSDsluCounter, 4530 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:31,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 4987 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-06 18:20:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2025-02-06 18:20:32,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 2719. [2025-02-06 18:20:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2617 states have (on average 1.3947267863966373) internal successors, (3650), 2633 states have internal predecessors, (3650), 54 states have call successors, (54), 38 states have call predecessors, (54), 35 states have return successors, (65), 47 states have call predecessors, (65), 54 states have call successors, (65) [2025-02-06 18:20:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3769 transitions. [2025-02-06 18:20:32,015 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3769 transitions. Word has length 135 [2025-02-06 18:20:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:32,015 INFO L471 AbstractCegarLoop]: Abstraction has 2719 states and 3769 transitions. [2025-02-06 18:20:32,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3769 transitions. [2025-02-06 18:20:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-06 18:20:32,016 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:32,017 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:32,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 18:20:32,217 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 [2025-02-06 18:20:32,217 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:32,218 INFO L85 PathProgramCache]: Analyzing trace with hash -971256589, now seen corresponding path program 1 times [2025-02-06 18:20:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:32,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957479578] [2025-02-06 18:20:32,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:32,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:32,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-06 18:20:32,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-06 18:20:32,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:32,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:20:32,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:32,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957479578] [2025-02-06 18:20:32,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957479578] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:32,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398291088] [2025-02-06 18:20:32,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:32,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:32,514 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) [2025-02-06 18:20:32,515 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 [2025-02-06 18:20:32,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-06 18:20:32,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-06 18:20:32,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:32,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:32,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 18:20:32,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:20:33,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:20:33,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398291088] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:33,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:33,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2025-02-06 18:20:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184924260] [2025-02-06 18:20:33,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:33,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 18:20:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:33,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 18:20:33,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-02-06 18:20:33,204 INFO L87 Difference]: Start difference. First operand 2719 states and 3769 transitions. Second operand has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 18:20:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:33,544 INFO L93 Difference]: Finished difference Result 5406 states and 7517 transitions. [2025-02-06 18:20:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:20:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 137 [2025-02-06 18:20:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:33,550 INFO L225 Difference]: With dead ends: 5406 [2025-02-06 18:20:33,550 INFO L226 Difference]: Without dead ends: 2781 [2025-02-06 18:20:33,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2025-02-06 18:20:33,552 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 26 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:33,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3933 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2025-02-06 18:20:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2759. [2025-02-06 18:20:33,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2656 states have (on average 1.3949548192771084) internal successors, (3705), 2669 states have internal predecessors, (3705), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2025-02-06 18:20:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3820 transitions. [2025-02-06 18:20:33,597 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3820 transitions. Word has length 137 [2025-02-06 18:20:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:33,597 INFO L471 AbstractCegarLoop]: Abstraction has 2759 states and 3820 transitions. [2025-02-06 18:20:33,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 18:20:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3820 transitions. [2025-02-06 18:20:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 18:20:33,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:33,598 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:33,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:33,798 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 [2025-02-06 18:20:33,799 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:33,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash -765988997, now seen corresponding path program 2 times [2025-02-06 18:20:33,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:33,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951981738] [2025-02-06 18:20:33,800 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:20:33,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:33,839 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-02-06 18:20:34,016 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 18:20:34,016 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:20:34,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:20:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951981738] [2025-02-06 18:20:34,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951981738] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46765279] [2025-02-06 18:20:34,347 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:20:34,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:34,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:34,349 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) [2025-02-06 18:20:34,354 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 [2025-02-06 18:20:34,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-02-06 18:20:34,607 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 141 statements. [2025-02-06 18:20:34,607 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:20:34,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:34,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:20:34,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:34,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 18:20:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 18:20:34,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:34,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46765279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:34,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:34,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-02-06 18:20:34,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162946460] [2025-02-06 18:20:34,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:34,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:20:34,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:34,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:20:34,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:20:34,628 INFO L87 Difference]: Start difference. First operand 2759 states and 3820 transitions. Second operand has 3 states, 2 states have (on average 55.5) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:34,702 INFO L93 Difference]: Finished difference Result 2759 states and 3820 transitions. [2025-02-06 18:20:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:34,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 55.5) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 141 [2025-02-06 18:20:34,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:34,707 INFO L225 Difference]: With dead ends: 2759 [2025-02-06 18:20:34,707 INFO L226 Difference]: Without dead ends: 2758 [2025-02-06 18:20:34,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:20:34,708 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 1 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:34,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 994 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 18:20:34,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2025-02-06 18:20:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2758. [2025-02-06 18:20:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 2656 states have (on average 1.3926957831325302) internal successors, (3699), 2668 states have internal predecessors, (3699), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2025-02-06 18:20:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3814 transitions. [2025-02-06 18:20:34,774 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3814 transitions. Word has length 141 [2025-02-06 18:20:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:34,774 INFO L471 AbstractCegarLoop]: Abstraction has 2758 states and 3814 transitions. [2025-02-06 18:20:34,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 55.5) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3814 transitions. [2025-02-06 18:20:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-06 18:20:34,775 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:34,775 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:34,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:34,976 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 [2025-02-06 18:20:34,976 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:34,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:34,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2024145562, now seen corresponding path program 1 times [2025-02-06 18:20:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:34,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447306025] [2025-02-06 18:20:34,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:34,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:35,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-06 18:20:35,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-06 18:20:35,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:35,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:20:35,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447306025] [2025-02-06 18:20:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447306025] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049705207] [2025-02-06 18:20:35,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:35,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:35,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:35,538 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) [2025-02-06 18:20:35,541 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 [2025-02-06 18:20:35,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-06 18:20:35,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-06 18:20:35,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:35,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:35,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-06 18:20:35,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:20:36,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:20:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049705207] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:36,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-02-06 18:20:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622040818] [2025-02-06 18:20:36,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 18:20:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:36,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 18:20:36,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-02-06 18:20:36,364 INFO L87 Difference]: Start difference. First operand 2758 states and 3814 transitions. Second operand has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 18:20:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:37,456 INFO L93 Difference]: Finished difference Result 5513 states and 7659 transitions. [2025-02-06 18:20:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-06 18:20:37,462 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 142 [2025-02-06 18:20:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:37,473 INFO L225 Difference]: With dead ends: 5513 [2025-02-06 18:20:37,473 INFO L226 Difference]: Without dead ends: 2834 [2025-02-06 18:20:37,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2025-02-06 18:20:37,477 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 47 mSDsluCounter, 7629 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 8110 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:37,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 8110 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 18:20:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2025-02-06 18:20:37,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2803. [2025-02-06 18:20:37,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2701 states have (on average 1.3872639763050723) internal successors, (3747), 2713 states have internal predecessors, (3747), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2025-02-06 18:20:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3862 transitions. [2025-02-06 18:20:37,539 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3862 transitions. Word has length 142 [2025-02-06 18:20:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:37,539 INFO L471 AbstractCegarLoop]: Abstraction has 2803 states and 3862 transitions. [2025-02-06 18:20:37,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 18:20:37,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3862 transitions. [2025-02-06 18:20:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-06 18:20:37,540 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:37,540 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:37,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:37,741 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 [2025-02-06 18:20:37,741 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:37,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:37,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1336494735, now seen corresponding path program 2 times [2025-02-06 18:20:37,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:37,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521878120] [2025-02-06 18:20:37,742 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:20:37,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:37,784 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 151 statements into 2 equivalence classes. [2025-02-06 18:20:37,903 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 151 of 151 statements. [2025-02-06 18:20:37,904 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:20:37,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-06 18:20:38,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:38,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521878120] [2025-02-06 18:20:38,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521878120] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:38,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233126279] [2025-02-06 18:20:38,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:20:38,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:38,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:38,500 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) [2025-02-06 18:20:38,503 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 [2025-02-06 18:20:38,788 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 151 statements into 2 equivalence classes. [2025-02-06 18:20:38,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 151 of 151 statements. [2025-02-06 18:20:38,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:20:38,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:38,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 18:20:38,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:38,904 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 11 treesize of output 7 [2025-02-06 18:20:39,237 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-06 18:20:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 18:20:39,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 18:20:39,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233126279] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:39,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 5] total 24 [2025-02-06 18:20:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774735018] [2025-02-06 18:20:39,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:39,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 18:20:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:39,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 18:20:39,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-02-06 18:20:39,635 INFO L87 Difference]: Start difference. First operand 2803 states and 3862 transitions. Second operand has 24 states, 24 states have (on average 14.375) internal successors, (345), 24 states have internal predecessors, (345), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-02-06 18:20:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:41,454 INFO L93 Difference]: Finished difference Result 7852 states and 10925 transitions. [2025-02-06 18:20:41,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-06 18:20:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 14.375) internal successors, (345), 24 states have internal predecessors, (345), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 151 [2025-02-06 18:20:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:41,467 INFO L225 Difference]: With dead ends: 7852 [2025-02-06 18:20:41,467 INFO L226 Difference]: Without dead ends: 5152 [2025-02-06 18:20:41,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 286 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2025-02-06 18:20:41,471 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 785 mSDsluCounter, 8136 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 8788 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:41,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 8788 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 18:20:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2025-02-06 18:20:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 3860. [2025-02-06 18:20:41,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3722 states have (on average 1.383664696399785) internal successors, (5150), 3738 states have internal predecessors, (5150), 85 states have call successors, (85), 47 states have call predecessors, (85), 41 states have return successors, (95), 74 states have call predecessors, (95), 85 states have call successors, (95) [2025-02-06 18:20:41,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 5330 transitions. [2025-02-06 18:20:41,586 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 5330 transitions. Word has length 151 [2025-02-06 18:20:41,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:41,586 INFO L471 AbstractCegarLoop]: Abstraction has 3860 states and 5330 transitions. [2025-02-06 18:20:41,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 14.375) internal successors, (345), 24 states have internal predecessors, (345), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-02-06 18:20:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 5330 transitions. [2025-02-06 18:20:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-02-06 18:20:41,587 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:41,588 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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] [2025-02-06 18:20:41,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 18:20:41,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:41,788 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:41,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash 826600001, now seen corresponding path program 1 times [2025-02-06 18:20:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:41,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017060318] [2025-02-06 18:20:41,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:41,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-06 18:20:41,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-06 18:20:41,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:41,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-02-06 18:20:42,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017060318] [2025-02-06 18:20:42,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017060318] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258251127] [2025-02-06 18:20:42,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:42,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:42,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:42,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:42,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 18:20:42,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-06 18:20:42,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-06 18:20:42,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:42,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:42,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 18:20:42,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-02-06 18:20:42,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-02-06 18:20:43,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258251127] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:43,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:43,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10] total 18 [2025-02-06 18:20:43,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551383226] [2025-02-06 18:20:43,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:43,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:20:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:43,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:20:43,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:20:43,053 INFO L87 Difference]: Start difference. First operand 3860 states and 5330 transitions. Second operand has 19 states, 18 states have (on average 10.5) internal successors, (189), 15 states have internal predecessors, (189), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2025-02-06 18:20:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:43,787 INFO L93 Difference]: Finished difference Result 9373 states and 13305 transitions. [2025-02-06 18:20:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:20:43,787 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 15 states have internal predecessors, (189), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 171 [2025-02-06 18:20:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:43,800 INFO L225 Difference]: With dead ends: 9373 [2025-02-06 18:20:43,800 INFO L226 Difference]: Without dead ends: 7401 [2025-02-06 18:20:43,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=299, Invalid=693, Unknown=0, NotChecked=0, Total=992 [2025-02-06 18:20:43,805 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 3557 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:43,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 5528 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 18:20:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2025-02-06 18:20:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 4840. [2025-02-06 18:20:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 4726 states have (on average 1.413245873889124) internal successors, (6679), 4741 states have internal predecessors, (6679), 67 states have call successors, (67), 41 states have call predecessors, (67), 36 states have return successors, (69), 57 states have call predecessors, (69), 67 states have call successors, (69) [2025-02-06 18:20:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 6815 transitions. [2025-02-06 18:20:43,997 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 6815 transitions. Word has length 171 [2025-02-06 18:20:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:43,998 INFO L471 AbstractCegarLoop]: Abstraction has 4840 states and 6815 transitions. [2025-02-06 18:20:43,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 15 states have internal predecessors, (189), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2025-02-06 18:20:43,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 6815 transitions. [2025-02-06 18:20:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-02-06 18:20:43,999 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:43,999 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2025-02-06 18:20:44,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:44,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-02-06 18:20:44,200 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:44,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1202625749, now seen corresponding path program 1 times [2025-02-06 18:20:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020847379] [2025-02-06 18:20:44,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:44,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 218 statements into 1 equivalence classes. [2025-02-06 18:20:44,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 218 of 218 statements. [2025-02-06 18:20:44,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:44,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:44,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:44,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020847379] [2025-02-06 18:20:44,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020847379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:44,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:44,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:20:44,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411849959] [2025-02-06 18:20:44,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:44,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:20:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:44,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:20:44,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:20:44,336 INFO L87 Difference]: Start difference. First operand 4840 states and 6815 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:44,440 INFO L93 Difference]: Finished difference Result 5987 states and 8459 transitions. [2025-02-06 18:20:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 218 [2025-02-06 18:20:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:44,446 INFO L225 Difference]: With dead ends: 5987 [2025-02-06 18:20:44,446 INFO L226 Difference]: Without dead ends: 2579 [2025-02-06 18:20:44,448 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 [2025-02-06 18:20:44,450 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 19 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:44,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 971 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2025-02-06 18:20:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2385. [2025-02-06 18:20:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2287 states have (on average 1.3414954088325317) internal successors, (3068), 2301 states have internal predecessors, (3068), 56 states have call successors, (56), 35 states have call predecessors, (56), 32 states have return successors, (58), 48 states have call predecessors, (58), 56 states have call successors, (58) [2025-02-06 18:20:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3182 transitions. [2025-02-06 18:20:44,506 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3182 transitions. Word has length 218 [2025-02-06 18:20:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:44,506 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3182 transitions. [2025-02-06 18:20:44,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3182 transitions. [2025-02-06 18:20:44,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2025-02-06 18:20:44,508 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:44,508 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2025-02-06 18:20:44,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 18:20:44,508 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:44,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:44,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1145385463, now seen corresponding path program 1 times [2025-02-06 18:20:44,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:44,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152527145] [2025-02-06 18:20:44,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:44,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:44,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-02-06 18:20:44,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-02-06 18:20:44,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:44,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:44,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:44,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152527145] [2025-02-06 18:20:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152527145] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:44,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:20:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767851538] [2025-02-06 18:20:44,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:44,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:20:44,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:44,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:20:44,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:20:44,654 INFO L87 Difference]: Start difference. First operand 2385 states and 3182 transitions. Second operand has 3 states, 2 states have (on average 88.5) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 18:20:44,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:44,754 INFO L93 Difference]: Finished difference Result 2700 states and 3642 transitions. [2025-02-06 18:20:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:20:44,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 88.5) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 220 [2025-02-06 18:20:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:44,759 INFO L225 Difference]: With dead ends: 2700 [2025-02-06 18:20:44,759 INFO L226 Difference]: Without dead ends: 2698 [2025-02-06 18:20:44,759 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 [2025-02-06 18:20:44,760 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 303 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:44,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 756 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 18:20:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2025-02-06 18:20:44,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2669. [2025-02-06 18:20:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2572 states have (on average 1.3561430793157077) internal successors, (3488), 2585 states have internal predecessors, (3488), 55 states have call successors, (55), 35 states have call predecessors, (55), 32 states have return successors, (57), 48 states have call predecessors, (57), 55 states have call successors, (57) [2025-02-06 18:20:44,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3600 transitions. [2025-02-06 18:20:44,873 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3600 transitions. Word has length 220 [2025-02-06 18:20:44,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:44,873 INFO L471 AbstractCegarLoop]: Abstraction has 2669 states and 3600 transitions. [2025-02-06 18:20:44,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 88.5) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 18:20:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3600 transitions. [2025-02-06 18:20:44,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-02-06 18:20:44,875 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:44,876 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2025-02-06 18:20:44,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-06 18:20:44,876 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:44,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash 827354606, now seen corresponding path program 1 times [2025-02-06 18:20:44,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:44,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42296296] [2025-02-06 18:20:44,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:44,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:44,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-06 18:20:44,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-06 18:20:44,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:44,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:45,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42296296] [2025-02-06 18:20:45,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42296296] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369281268] [2025-02-06 18:20:45,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:45,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:45,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:45,066 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:45,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 18:20:45,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-06 18:20:45,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-06 18:20:45,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:45,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:45,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:20:45,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-02-06 18:20:45,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:45,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369281268] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:45,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:45,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2025-02-06 18:20:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309143573] [2025-02-06 18:20:45,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:45,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:45,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:45,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:45,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:20:45,585 INFO L87 Difference]: Start difference. First operand 2669 states and 3600 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:45,720 INFO L93 Difference]: Finished difference Result 3587 states and 4896 transitions. [2025-02-06 18:20:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:45,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 231 [2025-02-06 18:20:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:45,726 INFO L225 Difference]: With dead ends: 3587 [2025-02-06 18:20:45,726 INFO L226 Difference]: Without dead ends: 2687 [2025-02-06 18:20:45,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:20:45,727 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 105 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:45,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1320 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2025-02-06 18:20:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2669. [2025-02-06 18:20:45,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2572 states have (on average 1.3398133748055987) internal successors, (3446), 2585 states have internal predecessors, (3446), 55 states have call successors, (55), 35 states have call predecessors, (55), 32 states have return successors, (57), 48 states have call predecessors, (57), 55 states have call successors, (57) [2025-02-06 18:20:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3558 transitions. [2025-02-06 18:20:45,789 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3558 transitions. Word has length 231 [2025-02-06 18:20:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:45,789 INFO L471 AbstractCegarLoop]: Abstraction has 2669 states and 3558 transitions. [2025-02-06 18:20:45,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3558 transitions. [2025-02-06 18:20:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-02-06 18:20:45,791 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:45,791 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2025-02-06 18:20:45,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 18:20:45,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-06 18:20:45,992 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:45,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -301361675, now seen corresponding path program 1 times [2025-02-06 18:20:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715231627] [2025-02-06 18:20:45,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:46,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-06 18:20:46,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-06 18:20:46,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:46,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715231627] [2025-02-06 18:20:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715231627] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284897387] [2025-02-06 18:20:46,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:46,177 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:46,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 18:20:46,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-06 18:20:46,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-06 18:20:46,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:46,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:46,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:20:46,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:46,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:20:46,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284897387] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:46,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:20:46,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2025-02-06 18:20:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990930723] [2025-02-06 18:20:46,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:46,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:20:46,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:46,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:20:46,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:46,878 INFO L87 Difference]: Start difference. First operand 2669 states and 3558 transitions. Second operand has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:47,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:47,014 INFO L93 Difference]: Finished difference Result 2670 states and 3558 transitions. [2025-02-06 18:20:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 231 [2025-02-06 18:20:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:47,019 INFO L225 Difference]: With dead ends: 2670 [2025-02-06 18:20:47,019 INFO L226 Difference]: Without dead ends: 2669 [2025-02-06 18:20:47,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:47,019 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 540 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:47,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1089 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2025-02-06 18:20:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2668. [2025-02-06 18:20:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 2572 states have (on average 1.338646967340591) internal successors, (3443), 2584 states have internal predecessors, (3443), 55 states have call successors, (55), 35 states have call predecessors, (55), 32 states have return successors, (57), 48 states have call predecessors, (57), 55 states have call successors, (57) [2025-02-06 18:20:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3555 transitions. [2025-02-06 18:20:47,083 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3555 transitions. Word has length 231 [2025-02-06 18:20:47,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:47,084 INFO L471 AbstractCegarLoop]: Abstraction has 2668 states and 3555 transitions. [2025-02-06 18:20:47,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3555 transitions. [2025-02-06 18:20:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2025-02-06 18:20:47,085 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:47,086 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1] [2025-02-06 18:20:47,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:47,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:47,290 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:47,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash -752277238, now seen corresponding path program 1 times [2025-02-06 18:20:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350266276] [2025-02-06 18:20:47,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:47,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:47,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 232 statements into 1 equivalence classes. [2025-02-06 18:20:47,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 232 of 232 statements. [2025-02-06 18:20:47,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:47,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350266276] [2025-02-06 18:20:47,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350266276] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171674661] [2025-02-06 18:20:47,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:47,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:47,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:47,460 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:47,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 18:20:47,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 232 statements into 1 equivalence classes. [2025-02-06 18:20:48,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 232 of 232 statements. [2025-02-06 18:20:48,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:48,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:48,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:20:48,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:48,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-02-06 18:20:48,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171674661] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:48,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 3] total 6 [2025-02-06 18:20:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119045866] [2025-02-06 18:20:48,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:48,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:20:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:48,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:20:48,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:20:48,401 INFO L87 Difference]: Start difference. First operand 2668 states and 3555 transitions. Second operand has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 7 states have internal predecessors, (539), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-02-06 18:20:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:48,733 INFO L93 Difference]: Finished difference Result 4527 states and 6111 transitions. [2025-02-06 18:20:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:20:48,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 7 states have internal predecessors, (539), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 232 [2025-02-06 18:20:48,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:48,748 INFO L225 Difference]: With dead ends: 4527 [2025-02-06 18:20:48,751 INFO L226 Difference]: Without dead ends: 4526 [2025-02-06 18:20:48,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:20:48,753 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 1437 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:48,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 1745 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:48,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2025-02-06 18:20:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4360. [2025-02-06 18:20:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 4264 states have (on average 1.3646810506566605) internal successors, (5819), 4276 states have internal predecessors, (5819), 55 states have call successors, (55), 35 states have call predecessors, (55), 32 states have return successors, (57), 48 states have call predecessors, (57), 55 states have call successors, (57) [2025-02-06 18:20:48,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 5931 transitions. [2025-02-06 18:20:48,911 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 5931 transitions. Word has length 232 [2025-02-06 18:20:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:48,912 INFO L471 AbstractCegarLoop]: Abstraction has 4360 states and 5931 transitions. [2025-02-06 18:20:48,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 7 states have internal predecessors, (539), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-02-06 18:20:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 5931 transitions. [2025-02-06 18:20:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2025-02-06 18:20:48,913 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:48,914 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:20:48,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:49,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:49,119 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:49,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1531349573, now seen corresponding path program 1 times [2025-02-06 18:20:49,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:49,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10462966] [2025-02-06 18:20:49,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:49,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:49,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 256 statements into 1 equivalence classes. [2025-02-06 18:20:49,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 256 of 256 statements. [2025-02-06 18:20:49,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:49,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2025-02-06 18:20:49,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10462966] [2025-02-06 18:20:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10462966] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362662292] [2025-02-06 18:20:49,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:49,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:49,589 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:49,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 18:20:50,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 256 statements into 1 equivalence classes. [2025-02-06 18:20:50,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 256 of 256 statements. [2025-02-06 18:20:50,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:50,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:50,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:20:50,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:50,149 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 11 treesize of output 7 [2025-02-06 18:20:50,345 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2025-02-06 18:20:50,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 18:20:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2025-02-06 18:20:50,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2025-02-06 18:20:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362662292] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:50,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 12 [2025-02-06 18:20:50,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089172533] [2025-02-06 18:20:50,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:50,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:20:50,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:50,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:20:50,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:20:50,479 INFO L87 Difference]: Start difference. First operand 4360 states and 5931 transitions. Second operand has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2025-02-06 18:20:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:50,926 INFO L93 Difference]: Finished difference Result 8333 states and 11408 transitions. [2025-02-06 18:20:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:20:50,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 256 [2025-02-06 18:20:50,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:50,936 INFO L225 Difference]: With dead ends: 8333 [2025-02-06 18:20:50,936 INFO L226 Difference]: Without dead ends: 5574 [2025-02-06 18:20:50,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 499 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2025-02-06 18:20:50,939 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 1152 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:50,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 3680 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 18:20:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2025-02-06 18:20:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 4360. [2025-02-06 18:20:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 4264 states have (on average 1.3630393996247654) internal successors, (5812), 4276 states have internal predecessors, (5812), 55 states have call successors, (55), 35 states have call predecessors, (55), 32 states have return successors, (57), 48 states have call predecessors, (57), 55 states have call successors, (57) [2025-02-06 18:20:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 5924 transitions. [2025-02-06 18:20:51,042 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 5924 transitions. Word has length 256 [2025-02-06 18:20:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:51,042 INFO L471 AbstractCegarLoop]: Abstraction has 4360 states and 5924 transitions. [2025-02-06 18:20:51,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2025-02-06 18:20:51,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 5924 transitions. [2025-02-06 18:20:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2025-02-06 18:20:51,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:51,045 INFO L218 NwaCegarLoop]: trace histogram [44, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-06 18:20:51,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-06 18:20:51,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-02-06 18:20:51,246 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:51,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:51,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1605633091, now seen corresponding path program 1 times [2025-02-06 18:20:51,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:51,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092378233] [2025-02-06 18:20:51,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:51,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:51,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 287 statements into 1 equivalence classes. [2025-02-06 18:20:51,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 287 of 287 statements. [2025-02-06 18:20:51,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:51,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 37 proven. 56 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2025-02-06 18:20:51,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:51,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092378233] [2025-02-06 18:20:51,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092378233] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:51,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870657126] [2025-02-06 18:20:51,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:51,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:51,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:51,557 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:51,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 18:20:52,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 287 statements into 1 equivalence classes. [2025-02-06 18:20:52,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 287 of 287 statements. [2025-02-06 18:20:52,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:52,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:52,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 2104 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 18:20:52,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 75 proven. 939 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2025-02-06 18:20:52,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 75 proven. 60 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2025-02-06 18:20:52,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870657126] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:20:52,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:20:52,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 15] total 28 [2025-02-06 18:20:52,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847203542] [2025-02-06 18:20:52,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:20:52,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-06 18:20:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:52,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-06 18:20:52,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2025-02-06 18:20:52,929 INFO L87 Difference]: Start difference. First operand 4360 states and 5924 transitions. Second operand has 28 states, 28 states have (on average 18.928571428571427) internal successors, (530), 24 states have internal predecessors, (530), 11 states have call successors, (29), 11 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2025-02-06 18:20:54,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:54,012 INFO L93 Difference]: Finished difference Result 5121 states and 6973 transitions. [2025-02-06 18:20:54,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 18:20:54,012 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 18.928571428571427) internal successors, (530), 24 states have internal predecessors, (530), 11 states have call successors, (29), 11 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 287 [2025-02-06 18:20:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:54,017 INFO L225 Difference]: With dead ends: 5121 [2025-02-06 18:20:54,017 INFO L226 Difference]: Without dead ends: 2730 [2025-02-06 18:20:54,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1431, Unknown=0, NotChecked=0, Total=1892 [2025-02-06 18:20:54,020 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 3622 mSDsluCounter, 4849 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 5366 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:54,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 5366 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 18:20:54,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2025-02-06 18:20:54,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 1990. [2025-02-06 18:20:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1942 states have (on average 1.3398558187435634) internal successors, (2602), 1948 states have internal predecessors, (2602), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:20:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2650 transitions. [2025-02-06 18:20:54,077 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2650 transitions. Word has length 287 [2025-02-06 18:20:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:54,077 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2650 transitions. [2025-02-06 18:20:54,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 18.928571428571427) internal successors, (530), 24 states have internal predecessors, (530), 11 states have call successors, (29), 11 states have call predecessors, (29), 10 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2025-02-06 18:20:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2650 transitions. [2025-02-06 18:20:54,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2025-02-06 18:20:54,079 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:54,079 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2025-02-06 18:20:54,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-06 18:20:54,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:54,281 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:54,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1629226809, now seen corresponding path program 1 times [2025-02-06 18:20:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:54,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878758948] [2025-02-06 18:20:54,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:54,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:54,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 310 statements into 1 equivalence classes. [2025-02-06 18:20:54,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 310 of 310 statements. [2025-02-06 18:20:54,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:54,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 79 proven. 155 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-02-06 18:20:55,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:55,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878758948] [2025-02-06 18:20:55,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878758948] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:55,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230914574] [2025-02-06 18:20:55,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:55,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:20:55,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:20:55,446 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:20:55,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 18:20:55,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 310 statements into 1 equivalence classes. [2025-02-06 18:20:56,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 310 of 310 statements. [2025-02-06 18:20:56,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:56,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:56,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 18:20:56,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:20:56,168 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 11 treesize of output 7 [2025-02-06 18:20:56,375 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2025-02-06 18:20:56,453 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-02-06 18:20:56,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 18:20:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 78 proven. 156 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-02-06 18:20:56,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:20:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-02-06 18:20:56,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230914574] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 18:20:56,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:20:56,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 8] total 18 [2025-02-06 18:20:56,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482615765] [2025-02-06 18:20:56,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:56,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:20:56,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:56,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:20:56,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:20:56,838 INFO L87 Difference]: Start difference. First operand 1990 states and 2650 transitions. Second operand has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 18:20:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:57,096 INFO L93 Difference]: Finished difference Result 2160 states and 2868 transitions. [2025-02-06 18:20:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:20:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 310 [2025-02-06 18:20:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:57,101 INFO L225 Difference]: With dead ends: 2160 [2025-02-06 18:20:57,101 INFO L226 Difference]: Without dead ends: 2159 [2025-02-06 18:20:57,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 603 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2025-02-06 18:20:57,102 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 392 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:57,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1931 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:20:57,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2025-02-06 18:20:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1989. [2025-02-06 18:20:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1942 states have (on average 1.3383110195674561) internal successors, (2599), 1947 states have internal predecessors, (2599), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:20:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2647 transitions. [2025-02-06 18:20:57,199 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2647 transitions. Word has length 310 [2025-02-06 18:20:57,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:57,199 INFO L471 AbstractCegarLoop]: Abstraction has 1989 states and 2647 transitions. [2025-02-06 18:20:57,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 18:20:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2647 transitions. [2025-02-06 18:20:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 18:20:57,203 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:57,204 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2025-02-06 18:20:57,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-06 18:20:57,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-02-06 18:20:57,406 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:57,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:57,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1033576121, now seen corresponding path program 1 times [2025-02-06 18:20:57,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:57,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713375146] [2025-02-06 18:20:57,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:57,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 18:20:57,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 18:20:57,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:57,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:20:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2025-02-06 18:20:57,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:20:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713375146] [2025-02-06 18:20:57,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713375146] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:20:57,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:20:57,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:20:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622840500] [2025-02-06 18:20:57,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:20:57,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:20:57,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:20:57,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:20:57,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:20:57,796 INFO L87 Difference]: Start difference. First operand 1989 states and 2647 transitions. Second operand has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:58,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:20:58,011 INFO L93 Difference]: Finished difference Result 2159 states and 2865 transitions. [2025-02-06 18:20:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:20:58,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 311 [2025-02-06 18:20:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:20:58,015 INFO L225 Difference]: With dead ends: 2159 [2025-02-06 18:20:58,015 INFO L226 Difference]: Without dead ends: 2158 [2025-02-06 18:20:58,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:20:58,016 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 390 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:20:58,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1643 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:20:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2025-02-06 18:20:58,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1988. [2025-02-06 18:20:58,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1942 states have (on average 1.336766220391349) internal successors, (2596), 1946 states have internal predecessors, (2596), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:20:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2644 transitions. [2025-02-06 18:20:58,074 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2644 transitions. Word has length 311 [2025-02-06 18:20:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:20:58,074 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2644 transitions. [2025-02-06 18:20:58,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:20:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2644 transitions. [2025-02-06 18:20:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-02-06 18:20:58,076 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:20:58,076 INFO L218 NwaCegarLoop]: trace histogram [22, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2025-02-06 18:20:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-06 18:20:58,077 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:20:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:20:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 828575570, now seen corresponding path program 1 times [2025-02-06 18:20:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:20:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932023829] [2025-02-06 18:20:58,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:20:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:20:58,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 18:20:59,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 18:20:59,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:20:59,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:21:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 276 proven. 89 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-02-06 18:21:12,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:21:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932023829] [2025-02-06 18:21:12,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932023829] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:21:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773821757] [2025-02-06 18:21:12,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:21:12,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:21:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:21:12,715 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:21:12,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 18:21:13,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 18:21:14,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 18:21:14,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:21:14,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:21:14,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-02-06 18:21:14,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:21:14,115 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 11 treesize of output 7 [2025-02-06 18:21:14,574 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-06 18:21:14,699 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-06 18:21:14,730 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 11 treesize of output 7 [2025-02-06 18:21:14,760 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-02-06 18:21:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 109 proven. 148 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-02-06 18:21:15,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:21:19,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773821757] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:21:19,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:21:19,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 16] total 53 [2025-02-06 18:21:19,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327872136] [2025-02-06 18:21:19,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:21:19,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-02-06 18:21:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:21:19,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-02-06 18:21:19,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=4014, Unknown=0, NotChecked=0, Total=4290 [2025-02-06 18:21:19,808 INFO L87 Difference]: Start difference. First operand 1988 states and 2644 transitions. Second operand has 53 states, 50 states have (on average 8.4) internal successors, (420), 50 states have internal predecessors, (420), 7 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 18:21:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:21:30,033 INFO L93 Difference]: Finished difference Result 4875 states and 6501 transitions. [2025-02-06 18:21:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2025-02-06 18:21:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 50 states have (on average 8.4) internal successors, (420), 50 states have internal predecessors, (420), 7 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 318 [2025-02-06 18:21:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:21:30,038 INFO L225 Difference]: With dead ends: 4875 [2025-02-06 18:21:30,038 INFO L226 Difference]: Without dead ends: 3057 [2025-02-06 18:21:30,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 494 SyntacticMatches, 8 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5269 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1059, Invalid=16233, Unknown=0, NotChecked=0, Total=17292 [2025-02-06 18:21:30,042 INFO L435 NwaCegarLoop]: 708 mSDtfsCounter, 2616 mSDsluCounter, 15945 mSDsCounter, 0 mSdLazyCounter, 8495 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2620 SdHoareTripleChecker+Valid, 16653 SdHoareTripleChecker+Invalid, 8623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 8495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:21:30,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2620 Valid, 16653 Invalid, 8623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 8495 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2025-02-06 18:21:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2025-02-06 18:21:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 2076. [2025-02-06 18:21:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2030 states have (on average 1.3280788177339902) internal successors, (2696), 2034 states have internal predecessors, (2696), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:21:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2744 transitions. [2025-02-06 18:21:30,116 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2744 transitions. Word has length 318 [2025-02-06 18:21:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:21:30,117 INFO L471 AbstractCegarLoop]: Abstraction has 2076 states and 2744 transitions. [2025-02-06 18:21:30,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 50 states have (on average 8.4) internal successors, (420), 50 states have internal predecessors, (420), 7 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 18:21:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2744 transitions. [2025-02-06 18:21:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-02-06 18:21:30,118 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:21:30,119 INFO L218 NwaCegarLoop]: trace histogram [22, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2025-02-06 18:21:30,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-02-06 18:21:30,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2025-02-06 18:21:30,319 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:21:30,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:21:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash -419757134, now seen corresponding path program 1 times [2025-02-06 18:21:30,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:21:30,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333812183] [2025-02-06 18:21:30,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:21:30,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:21:30,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 18:21:30,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 18:21:30,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:21:30,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:21:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2025-02-06 18:21:30,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:21:30,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333812183] [2025-02-06 18:21:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333812183] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:21:30,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:21:30,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:21:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909069786] [2025-02-06 18:21:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:21:30,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:21:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:21:30,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:21:30,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:21:30,582 INFO L87 Difference]: Start difference. First operand 2076 states and 2744 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:21:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:21:30,700 INFO L93 Difference]: Finished difference Result 4116 states and 5448 transitions. [2025-02-06 18:21:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:21:30,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 318 [2025-02-06 18:21:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:21:30,705 INFO L225 Difference]: With dead ends: 4116 [2025-02-06 18:21:30,705 INFO L226 Difference]: Without dead ends: 2076 [2025-02-06 18:21:30,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:21:30,707 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 1 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:21:30,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 932 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:21:30,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2025-02-06 18:21:30,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2076. [2025-02-06 18:21:30,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2030 states have (on average 1.3147783251231526) internal successors, (2669), 2034 states have internal predecessors, (2669), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:21:30,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2717 transitions. [2025-02-06 18:21:30,786 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2717 transitions. Word has length 318 [2025-02-06 18:21:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:21:30,786 INFO L471 AbstractCegarLoop]: Abstraction has 2076 states and 2717 transitions. [2025-02-06 18:21:30,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:21:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2717 transitions. [2025-02-06 18:21:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-02-06 18:21:30,788 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:21:30,788 INFO L218 NwaCegarLoop]: trace histogram [22, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:21:30,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-06 18:21:30,788 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:21:30,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:21:30,788 INFO L85 PathProgramCache]: Analyzing trace with hash 237655503, now seen corresponding path program 1 times [2025-02-06 18:21:30,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:21:30,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151445387] [2025-02-06 18:21:30,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:21:30,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:21:30,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-02-06 18:21:30,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-02-06 18:21:30,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:21:30,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:21:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2025-02-06 18:21:31,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:21:31,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151445387] [2025-02-06 18:21:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151445387] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:21:31,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:21:31,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:21:31,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522349602] [2025-02-06 18:21:31,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:21:31,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:21:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:21:31,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:21:31,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:21:31,051 INFO L87 Difference]: Start difference. First operand 2076 states and 2717 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:21:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:21:31,204 INFO L93 Difference]: Finished difference Result 4082 states and 5363 transitions. [2025-02-06 18:21:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:21:31,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 318 [2025-02-06 18:21:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:21:31,209 INFO L225 Difference]: With dead ends: 4082 [2025-02-06 18:21:31,209 INFO L226 Difference]: Without dead ends: 2040 [2025-02-06 18:21:31,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:21:31,212 INFO L435 NwaCegarLoop]: 464 mSDtfsCounter, 9 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:21:31,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1373 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:21:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2025-02-06 18:21:31,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2040. [2025-02-06 18:21:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2040 states, 1994 states have (on average 1.3159478435305918) internal successors, (2624), 1998 states have internal predecessors, (2624), 24 states have call successors, (24), 18 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-06 18:21:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2672 transitions. [2025-02-06 18:21:31,287 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2672 transitions. Word has length 318 [2025-02-06 18:21:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:21:31,288 INFO L471 AbstractCegarLoop]: Abstraction has 2040 states and 2672 transitions. [2025-02-06 18:21:31,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 18:21:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2672 transitions. [2025-02-06 18:21:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2025-02-06 18:21:31,289 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:21:31,289 INFO L218 NwaCegarLoop]: trace histogram [22, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2025-02-06 18:21:31,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-06 18:21:31,290 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:21:31,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:21:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash -731304149, now seen corresponding path program 1 times [2025-02-06 18:21:31,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:21:31,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289608883] [2025-02-06 18:21:31,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:21:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:21:31,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 319 statements into 1 equivalence classes. [2025-02-06 18:21:32,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 319 of 319 statements. [2025-02-06 18:21:32,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:21:32,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat