./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:05:56,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:05:56,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:05:56,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:05:56,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:05:56,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:05:56,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:05:56,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:05:56,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:05:56,859 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:05:56,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:05:56,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:05:56,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:05:56,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:05:56,861 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:05:56,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:05:56,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:05:56,862 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2025-03-17 19:05:57,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:05:57,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:05:57,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:05:57,065 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:05:57,066 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:05:57,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 19:05:58,152 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4f3d346/be71f13ad47a48928960c7c74058c2a8/FLAGe808f8b72 [2025-03-17 19:05:58,472 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:05:58,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 19:05:58,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4f3d346/be71f13ad47a48928960c7c74058c2a8/FLAGe808f8b72 [2025-03-17 19:05:58,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4f3d346/be71f13ad47a48928960c7c74058c2a8 [2025-03-17 19:05:58,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:05:58,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:05:58,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:05:58,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:05:58,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:05:58,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:05:58" (1/1) ... [2025-03-17 19:05:58,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f43a287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:58, skipping insertion in model container [2025-03-17 19:05:58,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:05:58" (1/1) ... [2025-03-17 19:05:58,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:05:58,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:05:58,989 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:05:59,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:05:59,109 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:05:59,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59 WrapperNode [2025-03-17 19:05:59,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:05:59,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:05:59,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:05:59,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:05:59,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,182 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1442 [2025-03-17 19:05:59,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:05:59,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:05:59,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:05:59,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:05:59,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,204 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,254 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 34, 12, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 54 writes are split as follows [0, 4, 1, 49]. [2025-03-17 19:05:59,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,290 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:05:59,316 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:05:59,317 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:05:59,317 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:05:59,318 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (1/1) ... [2025-03-17 19:05:59,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:05:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:05:59,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:05:59,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-17 19:05:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:05:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-17 19:05:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 19:05:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:05:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:05:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:05:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:05:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:05:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:05:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-17 19:05:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-17 19:05:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:05:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:05:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:05:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:05:59,537 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:05:59,539 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:05:59,594 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-17 19:06:00,523 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-17 19:06:00,524 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-17 19:06:00,524 INFO L1322 $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; [2025-03-17 19:06:00,584 INFO L? ?]: Removed 339 outVars from TransFormulas that were not future-live. [2025-03-17 19:06:00,584 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:06:00,633 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:06:00,633 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-17 19:06:00,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:06:00 BoogieIcfgContainer [2025-03-17 19:06:00,634 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:06:00,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:06:00,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:06:00,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:06:00,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:05:58" (1/3) ... [2025-03-17 19:06:00,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ae984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:06:00, skipping insertion in model container [2025-03-17 19:06:00,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:05:59" (2/3) ... [2025-03-17 19:06:00,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ae984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:06:00, skipping insertion in model container [2025-03-17 19:06:00,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:06:00" (3/3) ... [2025-03-17 19:06:00,642 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2025-03-17 19:06:00,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:06:00,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test6-1.i that has 6 procedures, 454 locations, 1 initial locations, 34 loop locations, and 14 error locations. [2025-03-17 19:06:00,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:06:00,710 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;@55712f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:06:00,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-17 19:06:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 454 states, 417 states have (on average 1.6067146282973621) internal successors, (670), 434 states have internal predecessors, (670), 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) [2025-03-17 19:06:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 19:06:00,717 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:00,717 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:06:00,718 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)] === [2025-03-17 19:06:00,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 514595481, now seen corresponding path program 1 times [2025-03-17 19:06:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:00,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232263187] [2025-03-17 19:06:00,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:00,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:00,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:06:00,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:06:00,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:00,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:00,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:00,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232263187] [2025-03-17 19:06:00,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232263187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:00,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:00,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:06:00,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434994081] [2025-03-17 19:06:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:00,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 19:06:00,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:00,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 19:06:00,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 19:06:00,889 INFO L87 Difference]: Start difference. First operand has 454 states, 417 states have (on average 1.6067146282973621) internal successors, (670), 434 states have internal predecessors, (670), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:01,016 INFO L93 Difference]: Finished difference Result 902 states and 1416 transitions. [2025-03-17 19:06:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 19:06:01,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 19:06:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:01,023 INFO L225 Difference]: With dead ends: 902 [2025-03-17 19:06:01,023 INFO L226 Difference]: Without dead ends: 435 [2025-03-17 19:06:01,026 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 [2025-03-17 19:06:01,028 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:01,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 591 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:01,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2025-03-17 19:06:01,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2025-03-17 19:06:01,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 407 states have (on average 1.457002457002457) internal successors, (593), 421 states have internal predecessors, (593), 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) [2025-03-17 19:06:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 613 transitions. [2025-03-17 19:06:01,084 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 613 transitions. Word has length 7 [2025-03-17 19:06:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:01,085 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 613 transitions. [2025-03-17 19:06:01,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 613 transitions. [2025-03-17 19:06:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 19:06:01,085 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:01,085 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:06:01,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:06:01,085 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)] === [2025-03-17 19:06:01,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash 514596442, now seen corresponding path program 1 times [2025-03-17 19:06:01,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:01,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248930928] [2025-03-17 19:06:01,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:01,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:06:01,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:06:01,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:01,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 19:06:01,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97216748] [2025-03-17 19:06:01,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:01,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:01,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:01,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:01,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:06:01,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:06:01,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:06:01,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:01,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:01,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:06:01,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:01,294 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 [2025-03-17 19:06:01,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:01,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:01,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:01,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248930928] [2025-03-17 19:06:01,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 19:06:01,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97216748] [2025-03-17 19:06:01,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97216748] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:01,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:01,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:06:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597489329] [2025-03-17 19:06:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:01,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:06:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:01,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:06:01,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:06:01,325 INFO L87 Difference]: Start difference. First operand 435 states and 613 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:01,567 INFO L93 Difference]: Finished difference Result 838 states and 1195 transitions. [2025-03-17 19:06:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:06:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 19:06:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:01,571 INFO L225 Difference]: With dead ends: 838 [2025-03-17 19:06:01,571 INFO L226 Difference]: Without dead ends: 836 [2025-03-17 19:06:01,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:06:01,572 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 556 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:01,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1706 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 19:06:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2025-03-17 19:06:01,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 442. [2025-03-17 19:06:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 414 states have (on average 1.4516908212560387) internal successors, (601), 428 states have internal predecessors, (601), 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) [2025-03-17 19:06:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions. [2025-03-17 19:06:01,600 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 7 [2025-03-17 19:06:01,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:01,600 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions. [2025-03-17 19:06:01,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions. [2025-03-17 19:06:01,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-17 19:06:01,602 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:01,602 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] [2025-03-17 19:06:01,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:06:01,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:01,803 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)] === [2025-03-17 19:06:01,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1360794116, now seen corresponding path program 1 times [2025-03-17 19:06:01,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:01,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013191260] [2025-03-17 19:06:01,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:01,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:01,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-17 19:06:01,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-17 19:06:01,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:01,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:02,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013191260] [2025-03-17 19:06:02,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013191260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:02,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:02,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:06:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948919094] [2025-03-17 19:06:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:02,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:06:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:02,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:06:02,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:06:02,129 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-17 19:06:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:02,267 INFO L93 Difference]: Finished difference Result 834 states and 1167 transitions. [2025-03-17 19:06:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:06:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 61 [2025-03-17 19:06:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:02,269 INFO L225 Difference]: With dead ends: 834 [2025-03-17 19:06:02,269 INFO L226 Difference]: Without dead ends: 400 [2025-03-17 19:06:02,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:06:02,272 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 18 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:02,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1418 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2025-03-17 19:06:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2025-03-17 19:06:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 372 states have (on average 1.4086021505376345) internal successors, (524), 386 states have internal predecessors, (524), 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) [2025-03-17 19:06:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 544 transitions. [2025-03-17 19:06:02,289 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 544 transitions. Word has length 61 [2025-03-17 19:06:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:02,289 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 544 transitions. [2025-03-17 19:06:02,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-17 19:06:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 544 transitions. [2025-03-17 19:06:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-17 19:06:02,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:02,294 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] [2025-03-17 19:06:02,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:06:02,294 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)] === [2025-03-17 19:06:02,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 619202934, now seen corresponding path program 1 times [2025-03-17 19:06:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809171769] [2025-03-17 19:06:02,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:02,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:02,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-17 19:06:02,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-17 19:06:02,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:02,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:02,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:02,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809171769] [2025-03-17 19:06:02,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809171769] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:02,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:02,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:06:02,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909381263] [2025-03-17 19:06:02,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:02,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:06:02,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:02,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:06:02,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:06:02,518 INFO L87 Difference]: Start difference. First operand 400 states and 544 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-03-17 19:06:02,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:02,640 INFO L93 Difference]: Finished difference Result 723 states and 993 transitions. [2025-03-17 19:06:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:06:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 61 [2025-03-17 19:06:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:02,645 INFO L225 Difference]: With dead ends: 723 [2025-03-17 19:06:02,645 INFO L226 Difference]: Without dead ends: 719 [2025-03-17 19:06:02,646 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 [2025-03-17 19:06:02,647 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 377 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1470 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 [2025-03-17 19:06:02,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1470 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:02,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-03-17 19:06:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 711. [2025-03-17 19:06:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 680 states have (on average 1.4161764705882354) internal successors, (963), 695 states have internal predecessors, (963), 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) [2025-03-17 19:06:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 989 transitions. [2025-03-17 19:06:02,670 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 989 transitions. Word has length 61 [2025-03-17 19:06:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:02,671 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 989 transitions. [2025-03-17 19:06:02,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-03-17 19:06:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 989 transitions. [2025-03-17 19:06:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 19:06:02,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:02,674 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] [2025-03-17 19:06:02,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:06:02,674 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)] === [2025-03-17 19:06:02,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2054098532, now seen corresponding path program 1 times [2025-03-17 19:06:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068470196] [2025-03-17 19:06:02,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:02,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 19:06:02,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 19:06:02,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:02,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:02,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:02,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068470196] [2025-03-17 19:06:02,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068470196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:02,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:02,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:06:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517452261] [2025-03-17 19:06:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:02,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:06:02,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:02,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:06:02,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:06:02,894 INFO L87 Difference]: Start difference. First operand 711 states and 989 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:03,067 INFO L93 Difference]: Finished difference Result 1667 states and 2362 transitions. [2025-03-17 19:06:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:06:03,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2025-03-17 19:06:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:03,072 INFO L225 Difference]: With dead ends: 1667 [2025-03-17 19:06:03,072 INFO L226 Difference]: Without dead ends: 1273 [2025-03-17 19:06:03,073 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 [2025-03-17 19:06:03,073 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 475 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1440 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 [2025-03-17 19:06:03,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1440 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2025-03-17 19:06:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 711. [2025-03-17 19:06:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 680 states have (on average 1.4147058823529413) internal successors, (962), 695 states have internal predecessors, (962), 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) [2025-03-17 19:06:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 988 transitions. [2025-03-17 19:06:03,091 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 988 transitions. Word has length 67 [2025-03-17 19:06:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:03,091 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 988 transitions. [2025-03-17 19:06:03,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 988 transitions. [2025-03-17 19:06:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 19:06:03,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:03,093 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] [2025-03-17 19:06:03,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:06:03,093 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)] === [2025-03-17 19:06:03,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:03,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1434511366, now seen corresponding path program 1 times [2025-03-17 19:06:03,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:03,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422416566] [2025-03-17 19:06:03,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:03,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:03,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 19:06:03,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 19:06:03,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:03,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:03,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:03,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422416566] [2025-03-17 19:06:03,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422416566] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:03,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:03,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:06:03,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355308183] [2025-03-17 19:06:03,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:03,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:06:03,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:03,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:06:03,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:06:03,232 INFO L87 Difference]: Start difference. First operand 711 states and 988 transitions. Second operand has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-17 19:06:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:03,314 INFO L93 Difference]: Finished difference Result 938 states and 1299 transitions. [2025-03-17 19:06:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:06:03,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 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 71 [2025-03-17 19:06:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:03,318 INFO L225 Difference]: With dead ends: 938 [2025-03-17 19:06:03,318 INFO L226 Difference]: Without dead ends: 936 [2025-03-17 19:06:03,318 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 [2025-03-17 19:06:03,319 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 403 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 987 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 [2025-03-17 19:06:03,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 987 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2025-03-17 19:06:03,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 926. [2025-03-17 19:06:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 887 states have (on average 1.4216459977452085) internal successors, (1261), 903 states have internal predecessors, (1261), 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) [2025-03-17 19:06:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1297 transitions. [2025-03-17 19:06:03,338 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1297 transitions. Word has length 71 [2025-03-17 19:06:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:03,339 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1297 transitions. [2025-03-17 19:06:03,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-17 19:06:03,339 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1297 transitions. [2025-03-17 19:06:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 19:06:03,340 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:03,340 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] [2025-03-17 19:06:03,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:06:03,341 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)] === [2025-03-17 19:06:03,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash -87399084, now seen corresponding path program 1 times [2025-03-17 19:06:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:03,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41838665] [2025-03-17 19:06:03,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:03,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:03,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 19:06:03,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 19:06:03,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:03,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:03,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:03,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:03,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41838665] [2025-03-17 19:06:03,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41838665] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:03,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452333915] [2025-03-17 19:06:03,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:03,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:03,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:03,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:03,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:06:03,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 19:06:03,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 19:06:03,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:03,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:03,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:06:03,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:03,887 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:03,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452333915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:03,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:06:03,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-03-17 19:06:03,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240378741] [2025-03-17 19:06:03,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:03,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:06:03,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:03,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:06:03,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:06:03,889 INFO L87 Difference]: Start difference. First operand 926 states and 1297 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 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) [2025-03-17 19:06:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:04,009 INFO L93 Difference]: Finished difference Result 1247 states and 1744 transitions. [2025-03-17 19:06:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:06:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 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 79 [2025-03-17 19:06:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:04,014 INFO L225 Difference]: With dead ends: 1247 [2025-03-17 19:06:04,014 INFO L226 Difference]: Without dead ends: 1246 [2025-03-17 19:06:04,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:06:04,015 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 496 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1395 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 [2025-03-17 19:06:04,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1395 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:04,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2025-03-17 19:06:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1045. [2025-03-17 19:06:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1004 states have (on average 1.4143426294820718) internal successors, (1420), 1021 states have internal predecessors, (1420), 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) [2025-03-17 19:06:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1460 transitions. [2025-03-17 19:06:04,038 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1460 transitions. Word has length 79 [2025-03-17 19:06:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:04,038 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1460 transitions. [2025-03-17 19:06:04,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 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) [2025-03-17 19:06:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1460 transitions. [2025-03-17 19:06:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 19:06:04,039 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:04,039 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] [2025-03-17 19:06:04,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 19:06:04,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-17 19:06:04,240 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)] === [2025-03-17 19:06:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1585595670, now seen corresponding path program 1 times [2025-03-17 19:06:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:04,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544518747] [2025-03-17 19:06:04,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:04,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 19:06:04,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 19:06:04,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:04,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:04,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:04,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544518747] [2025-03-17 19:06:04,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544518747] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:04,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54828257] [2025-03-17 19:06:04,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:04,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:04,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:04,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:06:04,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 19:06:04,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 19:06:04,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:04,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:04,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 19:06:04,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:04,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:06:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:04,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54828257] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:06:04,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:06:04,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-03-17 19:06:04,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444265367] [2025-03-17 19:06:04,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:06:04,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 19:06:04,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:04,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 19:06:04,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-17 19:06:04,935 INFO L87 Difference]: Start difference. First operand 1045 states and 1460 transitions. Second operand has 18 states, 17 states have (on average 12.588235294117647) internal successors, (214), 15 states have internal predecessors, (214), 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) [2025-03-17 19:06:05,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:05,985 INFO L93 Difference]: Finished difference Result 2810 states and 3908 transitions. [2025-03-17 19:06:05,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-17 19:06:05,985 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.588235294117647) internal successors, (214), 15 states have internal predecessors, (214), 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 80 [2025-03-17 19:06:05,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:05,994 INFO L225 Difference]: With dead ends: 2810 [2025-03-17 19:06:05,994 INFO L226 Difference]: Without dead ends: 2808 [2025-03-17 19:06:05,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 19:06:05,996 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 3387 mSDsluCounter, 7728 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3397 SdHoareTripleChecker+Valid, 8278 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:05,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3397 Valid, 8278 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 19:06:05,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2025-03-17 19:06:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2327. [2025-03-17 19:06:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2239 states have (on average 1.3966056275122822) internal successors, (3127), 2258 states have internal predecessors, (3127), 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) [2025-03-17 19:06:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3262 transitions. [2025-03-17 19:06:06,049 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3262 transitions. Word has length 80 [2025-03-17 19:06:06,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:06,050 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3262 transitions. [2025-03-17 19:06:06,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.588235294117647) internal successors, (214), 15 states have internal predecessors, (214), 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) [2025-03-17 19:06:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3262 transitions. [2025-03-17 19:06:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 19:06:06,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:06,051 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] [2025-03-17 19:06:06,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 19:06:06,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:06,252 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)] === [2025-03-17 19:06:06,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1741030598, now seen corresponding path program 1 times [2025-03-17 19:06:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230886740] [2025-03-17 19:06:06,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:06,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:06,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 19:06:06,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 19:06:06,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:06,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:06,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:06,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230886740] [2025-03-17 19:06:06,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230886740] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:06,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:06,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:06:06,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231068096] [2025-03-17 19:06:06,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:06,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:06:06,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:06,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:06:06,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:06:06,336 INFO L87 Difference]: Start difference. First operand 2327 states and 3262 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:06,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:06,476 INFO L93 Difference]: Finished difference Result 4711 states and 6624 transitions. [2025-03-17 19:06:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:06:06,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2025-03-17 19:06:06,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:06,487 INFO L225 Difference]: With dead ends: 4711 [2025-03-17 19:06:06,488 INFO L226 Difference]: Without dead ends: 2392 [2025-03-17 19:06:06,492 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 [2025-03-17 19:06:06,493 INFO L435 NwaCegarLoop]: 661 mSDtfsCounter, 295 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1133 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 [2025-03-17 19:06:06,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1133 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2025-03-17 19:06:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2381. [2025-03-17 19:06:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2300 states have (on average 1.4052173913043478) internal successors, (3232), 2318 states have internal predecessors, (3232), 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) [2025-03-17 19:06:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3354 transitions. [2025-03-17 19:06:06,565 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3354 transitions. Word has length 79 [2025-03-17 19:06:06,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:06,565 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3354 transitions. [2025-03-17 19:06:06,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:06:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3354 transitions. [2025-03-17 19:06:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 19:06:06,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:06,566 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] [2025-03-17 19:06:06,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:06:06,566 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)] === [2025-03-17 19:06:06,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:06,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1139951992, now seen corresponding path program 1 times [2025-03-17 19:06:06,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:06,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401268095] [2025-03-17 19:06:06,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:06,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 19:06:06,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 19:06:06,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:06,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 19:06:06,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:06,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401268095] [2025-03-17 19:06:06,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401268095] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:06,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557883344] [2025-03-17 19:06:06,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:06,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:06,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:06,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:06,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 19:06:06,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 19:06:06,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 19:06:06,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:06,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:06,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:06:06,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:07,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:06:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 19:06:07,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557883344] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:07,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 19:06:07,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-03-17 19:06:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433214540] [2025-03-17 19:06:07,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:07,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:06:07,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:07,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:06:07,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:06:07,233 INFO L87 Difference]: Start difference. First operand 2381 states and 3354 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-03-17 19:06:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:07,346 INFO L93 Difference]: Finished difference Result 2381 states and 3354 transitions. [2025-03-17 19:06:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:06:07,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 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 89 [2025-03-17 19:06:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:07,357 INFO L225 Difference]: With dead ends: 2381 [2025-03-17 19:06:07,357 INFO L226 Difference]: Without dead ends: 2380 [2025-03-17 19:06:07,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:06:07,359 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 961 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:07,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 493 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:07,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2025-03-17 19:06:07,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2380. [2025-03-17 19:06:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2300 states have (on average 1.4030434782608696) internal successors, (3227), 2317 states have internal predecessors, (3227), 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) [2025-03-17 19:06:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3349 transitions. [2025-03-17 19:06:07,421 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3349 transitions. Word has length 89 [2025-03-17 19:06:07,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:07,422 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 3349 transitions. [2025-03-17 19:06:07,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-03-17 19:06:07,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3349 transitions. [2025-03-17 19:06:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-17 19:06:07,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:07,422 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] [2025-03-17 19:06:07,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 19:06:07,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:07,623 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)] === [2025-03-17 19:06:07,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash 978773380, now seen corresponding path program 1 times [2025-03-17 19:06:07,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:07,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427565679] [2025-03-17 19:06:07,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:07,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:07,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 19:06:07,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 19:06:07,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:07,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 19:06:07,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427565679] [2025-03-17 19:06:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427565679] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410482904] [2025-03-17 19:06:07,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:07,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:07,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:07,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:07,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 19:06:07,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 19:06:08,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 19:06:08,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:08,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:08,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:06:08,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:08,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:06:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 19:06:08,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410482904] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:06:08,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:06:08,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-03-17 19:06:08,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546788065] [2025-03-17 19:06:08,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:06:08,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:06:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:08,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:06:08,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:06:08,280 INFO L87 Difference]: Start difference. First operand 2380 states and 3349 transitions. Second operand has 13 states, 12 states have (on average 18.75) internal successors, (225), 13 states have internal predecessors, (225), 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) [2025-03-17 19:06:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:08,791 INFO L93 Difference]: Finished difference Result 4720 states and 6646 transitions. [2025-03-17 19:06:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 19:06:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.75) internal successors, (225), 13 states have internal predecessors, (225), 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 90 [2025-03-17 19:06:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:08,806 INFO L225 Difference]: With dead ends: 4720 [2025-03-17 19:06:08,806 INFO L226 Difference]: Without dead ends: 4719 [2025-03-17 19:06:08,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2025-03-17 19:06:08,808 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 2037 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:08,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 3409 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 19:06:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4719 states. [2025-03-17 19:06:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4719 to 4342. [2025-03-17 19:06:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4186 states have (on average 1.4025322503583373) internal successors, (5871), 4206 states have internal predecessors, (5871), 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) [2025-03-17 19:06:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 6107 transitions. [2025-03-17 19:06:08,899 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 6107 transitions. Word has length 90 [2025-03-17 19:06:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:08,900 INFO L471 AbstractCegarLoop]: Abstraction has 4342 states and 6107 transitions. [2025-03-17 19:06:08,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.75) internal successors, (225), 13 states have internal predecessors, (225), 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) [2025-03-17 19:06:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 6107 transitions. [2025-03-17 19:06:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-17 19:06:08,901 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:08,901 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 19:06:08,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 19:06:09,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 19:06:09,102 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)] === [2025-03-17 19:06:09,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:09,102 INFO L85 PathProgramCache]: Analyzing trace with hash 635402849, now seen corresponding path program 1 times [2025-03-17 19:06:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:09,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500189811] [2025-03-17 19:06:09,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:09,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:09,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-17 19:06:09,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-17 19:06:09,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:09,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 19:06:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500189811] [2025-03-17 19:06:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500189811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:09,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:06:09,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:06:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614003491] [2025-03-17 19:06:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:09,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:06:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:09,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:06:09,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:06:09,372 INFO L87 Difference]: Start difference. First operand 4342 states and 6107 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2025-03-17 19:06:09,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:09,571 INFO L93 Difference]: Finished difference Result 5852 states and 8290 transitions. [2025-03-17 19:06:09,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:06:09,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 115 [2025-03-17 19:06:09,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:09,585 INFO L225 Difference]: With dead ends: 5852 [2025-03-17 19:06:09,586 INFO L226 Difference]: Without dead ends: 5850 [2025-03-17 19:06:09,588 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 [2025-03-17 19:06:09,588 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 389 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1409 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 [2025-03-17 19:06:09,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1409 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 19:06:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2025-03-17 19:06:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 4508. [2025-03-17 19:06:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4343 states have (on average 1.3969606262951877) internal successors, (6067), 4364 states have internal predecessors, (6067), 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) [2025-03-17 19:06:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6324 transitions. [2025-03-17 19:06:09,719 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6324 transitions. Word has length 115 [2025-03-17 19:06:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:09,719 INFO L471 AbstractCegarLoop]: Abstraction has 4508 states and 6324 transitions. [2025-03-17 19:06:09,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2025-03-17 19:06:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6324 transitions. [2025-03-17 19:06:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-17 19:06:09,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:09,723 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] [2025-03-17 19:06:09,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:06:09,723 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)] === [2025-03-17 19:06:09,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -258285576, now seen corresponding path program 1 times [2025-03-17 19:06:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973939220] [2025-03-17 19:06:09,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:09,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:09,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-17 19:06:09,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-17 19:06:09,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:09,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 19:06:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973939220] [2025-03-17 19:06:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973939220] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134033698] [2025-03-17 19:06:09,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:09,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:09,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:09,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 19:06:10,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-17 19:06:10,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-17 19:06:10,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:10,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:10,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 19:06:10,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 19:06:10,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:10,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134033698] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:10,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:06:10,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-03-17 19:06:10,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40842654] [2025-03-17 19:06:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:10,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 19:06:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:10,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 19:06:10,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:06:10,301 INFO L87 Difference]: Start difference. First operand 4508 states and 6324 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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) [2025-03-17 19:06:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:10,542 INFO L93 Difference]: Finished difference Result 8501 states and 11975 transitions. [2025-03-17 19:06:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 19:06:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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 122 [2025-03-17 19:06:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:10,553 INFO L225 Difference]: With dead ends: 8501 [2025-03-17 19:06:10,553 INFO L226 Difference]: Without dead ends: 4305 [2025-03-17 19:06:10,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:06:10,558 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 84 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:10,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2314 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 19:06:10,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2025-03-17 19:06:10,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4305. [2025-03-17 19:06:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4157 states have (on average 1.401972576377195) internal successors, (5828), 4176 states have internal predecessors, (5828), 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) [2025-03-17 19:06:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6057 transitions. [2025-03-17 19:06:10,648 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 6057 transitions. Word has length 122 [2025-03-17 19:06:10,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:10,648 INFO L471 AbstractCegarLoop]: Abstraction has 4305 states and 6057 transitions. [2025-03-17 19:06:10,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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) [2025-03-17 19:06:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 6057 transitions. [2025-03-17 19:06:10,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-17 19:06:10,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:10,649 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 19:06:10,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 19:06:10,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:10,850 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)] === [2025-03-17 19:06:10,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1743599207, now seen corresponding path program 1 times [2025-03-17 19:06:10,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:10,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436496825] [2025-03-17 19:06:10,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:10,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:10,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-17 19:06:11,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 19:06:11,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:11,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 19:06:11,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436496825] [2025-03-17 19:06:11,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436496825] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001636477] [2025-03-17 19:06:11,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:11,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:11,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:11,206 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:11,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 19:06:11,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-17 19:06:11,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 19:06:11,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:11,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:11,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-17 19:06:11,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:11,506 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 [2025-03-17 19:06:11,528 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 [2025-03-17 19:06:11,546 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 [2025-03-17 19:06:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 19:06:12,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:12,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001636477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:12,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:06:12,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 14 [2025-03-17 19:06:12,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563493022] [2025-03-17 19:06:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:12,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 19:06:12,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:12,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 19:06:12,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-03-17 19:06:12,002 INFO L87 Difference]: Start difference. First operand 4305 states and 6057 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 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) [2025-03-17 19:06:13,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:13,171 INFO L93 Difference]: Finished difference Result 9922 states and 14033 transitions. [2025-03-17 19:06:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:06:13,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 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 127 [2025-03-17 19:06:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:13,187 INFO L225 Difference]: With dead ends: 9922 [2025-03-17 19:06:13,190 INFO L226 Difference]: Without dead ends: 5661 [2025-03-17 19:06:13,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2025-03-17 19:06:13,197 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 596 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:13,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 2914 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 19:06:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5661 states. [2025-03-17 19:06:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5661 to 4305. [2025-03-17 19:06:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4157 states have (on average 1.4017320182824151) internal successors, (5827), 4176 states have internal predecessors, (5827), 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) [2025-03-17 19:06:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6056 transitions. [2025-03-17 19:06:13,283 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 6056 transitions. Word has length 127 [2025-03-17 19:06:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:13,283 INFO L471 AbstractCegarLoop]: Abstraction has 4305 states and 6056 transitions. [2025-03-17 19:06:13,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 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) [2025-03-17 19:06:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 6056 transitions. [2025-03-17 19:06:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 19:06:13,284 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:13,284 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 19:06:13,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 19:06:13,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:13,485 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)] === [2025-03-17 19:06:13,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1022554767, now seen corresponding path program 1 times [2025-03-17 19:06:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120017813] [2025-03-17 19:06:13,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:13,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 19:06:13,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 19:06:13,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:13,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 19:06:13,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120017813] [2025-03-17 19:06:13,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120017813] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:13,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547319532] [2025-03-17 19:06:13,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:13,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:13,772 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:13,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 19:06:13,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 19:06:14,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 19:06:14,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:14,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:14,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 19:06:14,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:06:14,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:14,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547319532] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:14,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:06:14,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-03-17 19:06:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638233307] [2025-03-17 19:06:14,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:14,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:06:14,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:14,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:06:14,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:06:14,156 INFO L87 Difference]: Start difference. First operand 4305 states and 6056 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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) [2025-03-17 19:06:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:14,374 INFO L93 Difference]: Finished difference Result 6898 states and 9704 transitions. [2025-03-17 19:06:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:06:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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 128 [2025-03-17 19:06:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:14,381 INFO L225 Difference]: With dead ends: 6898 [2025-03-17 19:06:14,381 INFO L226 Difference]: Without dead ends: 2679 [2025-03-17 19:06:14,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:06:14,386 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 13 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:14,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3865 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 19:06:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2025-03-17 19:06:14,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2677. [2025-03-17 19:06:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2575 states have (on average 1.4019417475728155) internal successors, (3610), 2591 states have internal predecessors, (3610), 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) [2025-03-17 19:06:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3729 transitions. [2025-03-17 19:06:14,435 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3729 transitions. Word has length 128 [2025-03-17 19:06:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:14,435 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 3729 transitions. [2025-03-17 19:06:14,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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) [2025-03-17 19:06:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3729 transitions. [2025-03-17 19:06:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 19:06:14,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:14,436 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] [2025-03-17 19:06:14,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 19:06:14,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 19:06:14,637 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)] === [2025-03-17 19:06:14,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1181637845, now seen corresponding path program 1 times [2025-03-17 19:06:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810591504] [2025-03-17 19:06:14,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:14,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:14,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 19:06:14,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 19:06:14,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:14,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:19,250 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 19:06:19,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810591504] [2025-03-17 19:06:19,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810591504] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531452317] [2025-03-17 19:06:19,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:19,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:19,253 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:19,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 19:06:19,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 19:06:19,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 19:06:19,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:19,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:19,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-17 19:06:19,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:06:19,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:06:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 19:06:20,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531452317] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:06:20,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:06:20,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 10, 6] total 42 [2025-03-17 19:06:20,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334188118] [2025-03-17 19:06:20,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:06:20,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-03-17 19:06:20,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:20,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-03-17 19:06:20,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2025-03-17 19:06:20,157 INFO L87 Difference]: Start difference. First operand 2677 states and 3729 transitions. Second operand has 42 states, 39 states have (on average 6.0256410256410255) internal successors, (235), 39 states have internal predecessors, (235), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-17 19:06:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:23,109 INFO L93 Difference]: Finished difference Result 6216 states and 8726 transitions. [2025-03-17 19:06:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-17 19:06:23,110 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 39 states have (on average 6.0256410256410255) internal successors, (235), 39 states have internal predecessors, (235), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 130 [2025-03-17 19:06:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:23,117 INFO L225 Difference]: With dead ends: 6216 [2025-03-17 19:06:23,117 INFO L226 Difference]: Without dead ends: 3637 [2025-03-17 19:06:23,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=399, Invalid=4293, Unknown=0, NotChecked=0, Total=4692 [2025-03-17 19:06:23,122 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 933 mSDsluCounter, 9541 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 9971 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:23,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 9971 Invalid, 3389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-17 19:06:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2025-03-17 19:06:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 2716. [2025-03-17 19:06:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2613 states have (on average 1.4022196708763872) internal successors, (3664), 2626 states have internal predecessors, (3664), 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) [2025-03-17 19:06:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3779 transitions. [2025-03-17 19:06:23,204 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3779 transitions. Word has length 130 [2025-03-17 19:06:23,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:23,205 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 3779 transitions. [2025-03-17 19:06:23,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 39 states have (on average 6.0256410256410255) internal successors, (235), 39 states have internal predecessors, (235), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-17 19:06:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3779 transitions. [2025-03-17 19:06:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-17 19:06:23,206 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:23,206 INFO L218 NwaCegarLoop]: trace histogram [6, 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] [2025-03-17 19:06:23,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 19:06:23,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 19:06:23,407 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)] === [2025-03-17 19:06:23,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1234069871, now seen corresponding path program 2 times [2025-03-17 19:06:23,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:23,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676722855] [2025-03-17 19:06:23,407 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:06:23,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:23,441 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-17 19:06:23,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 19:06:23,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:06:23,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:23,877 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 19:06:23,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676722855] [2025-03-17 19:06:23,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676722855] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490991292] [2025-03-17 19:06:23,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:06:23,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:23,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:23,880 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:23,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 19:06:24,115 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-17 19:06:24,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 134 statements. [2025-03-17 19:06:24,126 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:06:24,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:24,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:06:24,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:24,133 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 [2025-03-17 19:06:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-17 19:06:24,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:06:24,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490991292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:06:24,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:06:24,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-03-17 19:06:24,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676721676] [2025-03-17 19:06:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:06:24,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:06:24,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:24,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:06:24,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:06:24,143 INFO L87 Difference]: Start difference. First operand 2716 states and 3779 transitions. Second operand has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 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) [2025-03-17 19:06:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:24,219 INFO L93 Difference]: Finished difference Result 2716 states and 3779 transitions. [2025-03-17 19:06:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:06:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 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 134 [2025-03-17 19:06:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:24,224 INFO L225 Difference]: With dead ends: 2716 [2025-03-17 19:06:24,224 INFO L226 Difference]: Without dead ends: 2715 [2025-03-17 19:06:24,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:06:24,225 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 1 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 982 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 [2025-03-17 19:06:24,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 982 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 19:06:24,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2025-03-17 19:06:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2715. [2025-03-17 19:06:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2613 states have (on average 1.3999234596249521) internal successors, (3658), 2625 states have internal predecessors, (3658), 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) [2025-03-17 19:06:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3773 transitions. [2025-03-17 19:06:24,278 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3773 transitions. Word has length 134 [2025-03-17 19:06:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:24,278 INFO L471 AbstractCegarLoop]: Abstraction has 2715 states and 3773 transitions. [2025-03-17 19:06:24,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 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) [2025-03-17 19:06:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3773 transitions. [2025-03-17 19:06:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 19:06:24,279 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:24,279 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] [2025-03-17 19:06:24,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 19:06:24,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 19:06:24,480 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 19:06:24,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash -398538975, now seen corresponding path program 1 times [2025-03-17 19:06:24,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:24,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799239081] [2025-03-17 19:06:24,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:24,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:24,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 19:06:24,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 19:06:24,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:24,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 19:06:24,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:24,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799239081] [2025-03-17 19:06:24,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799239081] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:24,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807128743] [2025-03-17 19:06:24,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:06:24,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:24,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:24,880 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:24,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 19:06:25,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 19:06:25,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 19:06:25,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:06:25,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:25,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-17 19:06:25,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 19:06:25,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:06:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 19:06:25,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807128743] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:06:25,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:06:25,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-03-17 19:06:25,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127840931] [2025-03-17 19:06:25,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:06:25,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-17 19:06:25,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:06:25,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-17 19:06:25,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-03-17 19:06:25,591 INFO L87 Difference]: Start difference. First operand 2715 states and 3773 transitions. Second operand has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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) [2025-03-17 19:06:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:06:26,532 INFO L93 Difference]: Finished difference Result 5411 states and 7559 transitions. [2025-03-17 19:06:26,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-17 19:06:26,532 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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 135 [2025-03-17 19:06:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:06:26,538 INFO L225 Difference]: With dead ends: 5411 [2025-03-17 19:06:26,538 INFO L226 Difference]: Without dead ends: 2785 [2025-03-17 19:06:26,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2025-03-17 19:06:26,542 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 48 mSDsluCounter, 6600 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7075 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 19:06:26,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 7075 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 19:06:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2025-03-17 19:06:26,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2760. [2025-03-17 19:06:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2658 states have (on average 1.3942814145974416) internal successors, (3706), 2670 states have internal predecessors, (3706), 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) [2025-03-17 19:06:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3821 transitions. [2025-03-17 19:06:26,629 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3821 transitions. Word has length 135 [2025-03-17 19:06:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:06:26,630 INFO L471 AbstractCegarLoop]: Abstraction has 2760 states and 3821 transitions. [2025-03-17 19:06:26,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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) [2025-03-17 19:06:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3821 transitions. [2025-03-17 19:06:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-03-17 19:06:26,631 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:06:26,631 INFO L218 NwaCegarLoop]: trace histogram [15, 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] [2025-03-17 19:06:26,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 19:06:26,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 19:06:26,832 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)] === [2025-03-17 19:06:26,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:06:26,832 INFO L85 PathProgramCache]: Analyzing trace with hash -928034212, now seen corresponding path program 2 times [2025-03-17 19:06:26,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:06:26,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852875959] [2025-03-17 19:06:26,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:06:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:06:26,866 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 144 statements into 2 equivalence classes. [2025-03-17 19:06:26,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 144 of 144 statements. [2025-03-17 19:06:26,956 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:06:26,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 125 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 19:06:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:06:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852875959] [2025-03-17 19:06:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852875959] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:06:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876922825] [2025-03-17 19:06:27,457 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:06:27,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:06:27,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:06:27,459 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:06:27,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 19:06:27,710 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 144 statements into 2 equivalence classes. [2025-03-17 19:06:27,879 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 144 of 144 statements. [2025-03-17 19:06:27,879 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:06:27,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:06:27,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-17 19:06:27,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:06:49,952 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)