./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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_JEN_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 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:08:52,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:08:52,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:08:52,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:08:52,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:08:52,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:08:52,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:08:52,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:08:52,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:08:52,976 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:08:52,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:08:52,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:08:52,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:08:52,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:08:52,977 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:08:52,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:08:52,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:08:52,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:08:52,978 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 -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2025-03-09 06:08:53,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:08:53,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:08:53,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:08:53,429 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:08:53,429 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:08:53,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-03-09 06:08:55,054 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc875017/5aceb982b4984b309dee8622cd9df152/FLAG04846448b [2025-03-09 06:08:55,613 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:08:55,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-03-09 06:08:55,644 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc875017/5aceb982b4984b309dee8622cd9df152/FLAG04846448b [2025-03-09 06:08:56,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc875017/5aceb982b4984b309dee8622cd9df152 [2025-03-09 06:08:56,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:08:56,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:08:56,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:08:56,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:08:56,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:08:56,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:08:56" (1/1) ... [2025-03-09 06:08:56,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79600425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:56, skipping insertion in model container [2025-03-09 06:08:56,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:08:56" (1/1) ... [2025-03-09 06:08:56,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:08:57,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:08:57,133 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:08:57,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:08:57,382 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:08:57,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57 WrapperNode [2025-03-09 06:08:57,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:08:57,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:08:57,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:08:57,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:08:57,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,555 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1442 [2025-03-09 06:08:57,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:08:57,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:08:57,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:08:57,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:08:57,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,698 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2025-03-09 06:08:57,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:08:57,808 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:08:57,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:08:57,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:08:57,813 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (1/1) ... [2025-03-09 06:08:57,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:08:57,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:08:57,898 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) [2025-03-09 06:08:57,908 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 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 06:08:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-09 06:08:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 06:08:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:08:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:08:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-09 06:08:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-09 06:08:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:08:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:08:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:08:58,271 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:08:58,279 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:08:58,377 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-09 06:09:00,282 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-09 06:09:00,282 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-09 06:09:00,283 INFO L1307 $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; [2025-03-09 06:09:00,361 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2025-03-09 06:09:00,361 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:09:00,471 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:09:00,475 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-09 06:09:00,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:09:00 BoogieIcfgContainer [2025-03-09 06:09:00,475 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:09:00,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:09:00,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:09:00,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:09:00,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:08:56" (1/3) ... [2025-03-09 06:09:00,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100872ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:09:00, skipping insertion in model container [2025-03-09 06:09:00,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:08:57" (2/3) ... [2025-03-09 06:09:00,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100872ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:09:00, skipping insertion in model container [2025-03-09 06:09:00,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:09:00" (3/3) ... [2025-03-09 06:09:00,496 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2025-03-09 06:09:00,520 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:09:00,525 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-1.i that has 6 procedures, 457 locations, 1 initial locations, 34 loop locations, and 14 error locations. [2025-03-09 06:09:00,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:09:00,653 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;@416d70c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:09:00,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-09 06:09:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 420 states have (on average 1.6023809523809525) internal successors, (673), 437 states have internal predecessors, (673), 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) [2025-03-09 06:09:00,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:09:00,675 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:00,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:00,676 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)] === [2025-03-09 06:09:00,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:00,684 INFO L85 PathProgramCache]: Analyzing trace with hash -945499652, now seen corresponding path program 1 times [2025-03-09 06:09:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:00,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453933993] [2025-03-09 06:09:00,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:00,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:00,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:09:00,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:09:00,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:00,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453933993] [2025-03-09 06:09:00,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453933993] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:00,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:00,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:09:00,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536443664] [2025-03-09 06:09:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:01,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 06:09:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:01,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 06:09:01,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 06:09:01,040 INFO L87 Difference]: Start difference. First operand has 457 states, 420 states have (on average 1.6023809523809525) internal successors, (673), 437 states have internal predecessors, (673), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:09:01,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:01,256 INFO L93 Difference]: Finished difference Result 907 states and 1421 transitions. [2025-03-09 06:09:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 06:09:01,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-09 06:09:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:01,276 INFO L225 Difference]: With dead ends: 907 [2025-03-09 06:09:01,277 INFO L226 Difference]: Without dead ends: 438 [2025-03-09 06:09:01,285 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 [2025-03-09 06:09:01,291 INFO L435 NwaCegarLoop]: 594 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, 594 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:01,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 594 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2025-03-09 06:09:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2025-03-09 06:09:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 410 states have (on average 1.4536585365853658) internal successors, (596), 424 states have internal predecessors, (596), 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) [2025-03-09 06:09:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 616 transitions. [2025-03-09 06:09:01,388 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 616 transitions. Word has length 8 [2025-03-09 06:09:01,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:01,388 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 616 transitions. [2025-03-09 06:09:01,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:09:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 616 transitions. [2025-03-09 06:09:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:09:01,392 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:01,392 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:01,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:09:01,392 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)] === [2025-03-09 06:09:01,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -945498691, now seen corresponding path program 1 times [2025-03-09 06:09:01,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:01,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802976272] [2025-03-09 06:09:01,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:01,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:01,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:09:01,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:09:01,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:01,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:09:01,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131290904] [2025-03-09 06:09:01,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:01,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:01,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:01,482 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) [2025-03-09 06:09:01,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:09:01,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:09:01,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:09:01,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:01,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:01,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:09:01,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:01,762 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 [2025-03-09 06:09:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:01,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:01,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802976272] [2025-03-09 06:09:01,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:09:01,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131290904] [2025-03-09 06:09:01,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131290904] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:01,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:09:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453083626] [2025-03-09 06:09:01,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:01,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:01,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:01,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:01,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:09:01,813 INFO L87 Difference]: Start difference. First operand 438 states and 616 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:09:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:02,273 INFO L93 Difference]: Finished difference Result 842 states and 1199 transitions. [2025-03-09 06:09:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:02,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-09 06:09:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:02,282 INFO L225 Difference]: With dead ends: 842 [2025-03-09 06:09:02,284 INFO L226 Difference]: Without dead ends: 840 [2025-03-09 06:09:02,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:02,286 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 557 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:02,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1724 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:09:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2025-03-09 06:09:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 445. [2025-03-09 06:09:02,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 417 states have (on average 1.4484412470023982) internal successors, (604), 431 states have internal predecessors, (604), 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) [2025-03-09 06:09:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 624 transitions. [2025-03-09 06:09:02,328 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 624 transitions. Word has length 8 [2025-03-09 06:09:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:02,328 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 624 transitions. [2025-03-09 06:09:02,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:09:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 624 transitions. [2025-03-09 06:09:02,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:09:02,334 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:02,334 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] [2025-03-09 06:09:02,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:02,539 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 [2025-03-09 06:09:02,540 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)] === [2025-03-09 06:09:02,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:02,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1620078048, now seen corresponding path program 1 times [2025-03-09 06:09:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:02,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861753378] [2025-03-09 06:09:02,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:02,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:02,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:09:02,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:09:02,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:02,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:03,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:03,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861753378] [2025-03-09 06:09:03,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861753378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:03,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:03,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:09:03,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850249869] [2025-03-09 06:09:03,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:03,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:03,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:03,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:09:03,031 INFO L87 Difference]: Start difference. First operand 445 states and 624 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2025-03-09 06:09:03,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:03,267 INFO L93 Difference]: Finished difference Result 839 states and 1172 transitions. [2025-03-09 06:09:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:09:03,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 62 [2025-03-09 06:09:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:03,269 INFO L225 Difference]: With dead ends: 839 [2025-03-09 06:09:03,272 INFO L226 Difference]: Without dead ends: 403 [2025-03-09 06:09:03,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:03,274 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 30 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:03,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1427 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-03-09 06:09:03,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2025-03-09 06:09:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 375 states have (on average 1.4053333333333333) internal successors, (527), 389 states have internal predecessors, (527), 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) [2025-03-09 06:09:03,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 547 transitions. [2025-03-09 06:09:03,310 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 547 transitions. Word has length 62 [2025-03-09 06:09:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:03,311 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 547 transitions. [2025-03-09 06:09:03,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2025-03-09 06:09:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 547 transitions. [2025-03-09 06:09:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:09:03,319 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:03,320 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] [2025-03-09 06:09:03,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:09:03,320 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)] === [2025-03-09 06:09:03,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1726730970, now seen corresponding path program 1 times [2025-03-09 06:09:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:03,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969093504] [2025-03-09 06:09:03,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:03,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:09:03,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:09:03,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:03,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:03,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:03,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969093504] [2025-03-09 06:09:03,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969093504] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:03,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:09:03,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477300451] [2025-03-09 06:09:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:03,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:03,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:03,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:09:03,818 INFO L87 Difference]: Start difference. First operand 403 states and 547 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2025-03-09 06:09:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:04,040 INFO L93 Difference]: Finished difference Result 727 states and 997 transitions. [2025-03-09 06:09:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:04,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 62 [2025-03-09 06:09:04,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:04,049 INFO L225 Difference]: With dead ends: 727 [2025-03-09 06:09:04,052 INFO L226 Difference]: Without dead ends: 723 [2025-03-09 06:09:04,053 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 [2025-03-09 06:09:04,056 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 378 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:04,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1478 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2025-03-09 06:09:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 715. [2025-03-09 06:09:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 684 states have (on average 1.4137426900584795) internal successors, (967), 699 states have internal predecessors, (967), 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) [2025-03-09 06:09:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 993 transitions. [2025-03-09 06:09:04,105 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 993 transitions. Word has length 62 [2025-03-09 06:09:04,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:04,105 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 993 transitions. [2025-03-09 06:09:04,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2025-03-09 06:09:04,106 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 993 transitions. [2025-03-09 06:09:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-09 06:09:04,114 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:04,114 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] [2025-03-09 06:09:04,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:09:04,114 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)] === [2025-03-09 06:09:04,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2053430496, now seen corresponding path program 1 times [2025-03-09 06:09:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:04,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515127886] [2025-03-09 06:09:04,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:04,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-09 06:09:04,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-09 06:09:04,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:04,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:04,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515127886] [2025-03-09 06:09:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515127886] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:04,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:04,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:09:04,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648544360] [2025-03-09 06:09:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:04,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:04,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:04,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:04,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:09:04,486 INFO L87 Difference]: Start difference. First operand 715 states and 993 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-09 06:09:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:04,818 INFO L93 Difference]: Finished difference Result 1675 states and 2370 transitions. [2025-03-09 06:09:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:04,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2025-03-09 06:09:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:04,829 INFO L225 Difference]: With dead ends: 1675 [2025-03-09 06:09:04,832 INFO L226 Difference]: Without dead ends: 1279 [2025-03-09 06:09:04,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:04,834 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 476 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 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, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:04,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1440 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 06:09:04,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2025-03-09 06:09:04,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 715. [2025-03-09 06:09:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 684 states have (on average 1.412280701754386) internal successors, (966), 699 states have internal predecessors, (966), 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) [2025-03-09 06:09:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 992 transitions. [2025-03-09 06:09:04,899 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 992 transitions. Word has length 68 [2025-03-09 06:09:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:04,900 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 992 transitions. [2025-03-09 06:09:04,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-09 06:09:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 992 transitions. [2025-03-09 06:09:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 06:09:04,901 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:04,901 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] [2025-03-09 06:09:04,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:09:04,901 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)] === [2025-03-09 06:09:04,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 385671518, now seen corresponding path program 1 times [2025-03-09 06:09:04,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:04,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877786646] [2025-03-09 06:09:04,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:04,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 06:09:04,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 06:09:04,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:04,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877786646] [2025-03-09 06:09:05,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877786646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:05,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:09:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111120049] [2025-03-09 06:09:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:05,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:09:05,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:05,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:09:05,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:09:05,254 INFO L87 Difference]: Start difference. First operand 715 states and 992 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-03-09 06:09:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:05,491 INFO L93 Difference]: Finished difference Result 943 states and 1304 transitions. [2025-03-09 06:09:05,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:05,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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 72 [2025-03-09 06:09:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:05,496 INFO L225 Difference]: With dead ends: 943 [2025-03-09 06:09:05,496 INFO L226 Difference]: Without dead ends: 941 [2025-03-09 06:09:05,497 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 [2025-03-09 06:09:05,498 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 404 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:05,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 992 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:05,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2025-03-09 06:09:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 931. [2025-03-09 06:09:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 892 states have (on average 1.4192825112107623) internal successors, (1266), 908 states have internal predecessors, (1266), 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) [2025-03-09 06:09:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1302 transitions. [2025-03-09 06:09:05,535 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1302 transitions. Word has length 72 [2025-03-09 06:09:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:05,542 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1302 transitions. [2025-03-09 06:09:05,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-03-09 06:09:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1302 transitions. [2025-03-09 06:09:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-09 06:09:05,543 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:05,543 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:05,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:09:05,543 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)] === [2025-03-09 06:09:05,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:05,543 INFO L85 PathProgramCache]: Analyzing trace with hash -679971364, now seen corresponding path program 1 times [2025-03-09 06:09:05,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:05,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997635868] [2025-03-09 06:09:05,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:05,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:09:05,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:09:05,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:05,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:06,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997635868] [2025-03-09 06:09:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997635868] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785800588] [2025-03-09 06:09:06,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:06,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:06,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:06,108 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) [2025-03-09 06:09:06,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:09:06,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:09:06,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:09:06,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:06,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:06,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:09:06,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:06,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:06,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785800588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:06,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:06,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-03-09 06:09:06,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104995425] [2025-03-09 06:09:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:06,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:09:06,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:06,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:09:06,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:09:06,612 INFO L87 Difference]: Start difference. First operand 931 states and 1302 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-03-09 06:09:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:06,828 INFO L93 Difference]: Finished difference Result 1253 states and 1750 transitions. [2025-03-09 06:09:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:09:06,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 81 [2025-03-09 06:09:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:06,834 INFO L225 Difference]: With dead ends: 1253 [2025-03-09 06:09:06,835 INFO L226 Difference]: Without dead ends: 1252 [2025-03-09 06:09:06,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:09:06,836 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 498 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:06,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1892 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2025-03-09 06:09:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1050. [2025-03-09 06:09:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1009 states have (on average 1.4122893954410307) internal successors, (1425), 1026 states have internal predecessors, (1425), 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) [2025-03-09 06:09:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1465 transitions. [2025-03-09 06:09:06,878 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1465 transitions. Word has length 81 [2025-03-09 06:09:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:06,878 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1465 transitions. [2025-03-09 06:09:06,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-03-09 06:09:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1465 transitions. [2025-03-09 06:09:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-09 06:09:06,879 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:06,880 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:06,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:07,083 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 [2025-03-09 06:09:07,084 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)] === [2025-03-09 06:09:07,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash 395724174, now seen corresponding path program 1 times [2025-03-09 06:09:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:07,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471562722] [2025-03-09 06:09:07,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:07,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:09:07,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:09:07,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:07,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:07,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:07,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471562722] [2025-03-09 06:09:07,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471562722] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:07,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979024026] [2025-03-09 06:09:07,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:07,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:07,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:07,490 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) [2025-03-09 06:09:07,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:09:07,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:09:07,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:09:07,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:07,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:07,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 06:09:07,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:07,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979024026] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:08,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-03-09 06:09:08,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197038516] [2025-03-09 06:09:08,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:08,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:09:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:08,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:09:08,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:09:08,217 INFO L87 Difference]: Start difference. First operand 1050 states and 1465 transitions. Second operand has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 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) [2025-03-09 06:09:09,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:09,378 INFO L93 Difference]: Finished difference Result 2823 states and 3921 transitions. [2025-03-09 06:09:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 06:09:09,379 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 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 82 [2025-03-09 06:09:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:09,388 INFO L225 Difference]: With dead ends: 2823 [2025-03-09 06:09:09,388 INFO L226 Difference]: Without dead ends: 2821 [2025-03-09 06:09:09,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2025-03-09 06:09:09,390 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 4024 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 7376 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:09,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4034 Valid, 7376 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 06:09:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2025-03-09 06:09:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2338. [2025-03-09 06:09:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 2250 states have (on average 1.3946666666666667) internal successors, (3138), 2269 states have internal predecessors, (3138), 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) [2025-03-09 06:09:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3273 transitions. [2025-03-09 06:09:09,458 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3273 transitions. Word has length 82 [2025-03-09 06:09:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:09,458 INFO L471 AbstractCegarLoop]: Abstraction has 2338 states and 3273 transitions. [2025-03-09 06:09:09,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 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) [2025-03-09 06:09:09,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3273 transitions. [2025-03-09 06:09:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-09 06:09:09,459 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:09,459 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:09,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:09,663 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 [2025-03-09 06:09:09,663 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)] === [2025-03-09 06:09:09,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 734834845, now seen corresponding path program 1 times [2025-03-09 06:09:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:09,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455371694] [2025-03-09 06:09:09,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:09,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:09,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-09 06:09:09,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-09 06:09:09,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:09,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:09,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:09,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455371694] [2025-03-09 06:09:09,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455371694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:09,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:09,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:09:09,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285283643] [2025-03-09 06:09:09,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:09,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:09:09,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:09,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:09:09,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:09:09,785 INFO L87 Difference]: Start difference. First operand 2338 states and 3273 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-09 06:09:09,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:09,959 INFO L93 Difference]: Finished difference Result 4733 states and 6646 transitions. [2025-03-09 06:09:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:09,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2025-03-09 06:09:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:09,968 INFO L225 Difference]: With dead ends: 4733 [2025-03-09 06:09:09,969 INFO L226 Difference]: Without dead ends: 2404 [2025-03-09 06:09:09,972 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 [2025-03-09 06:09:09,972 INFO L435 NwaCegarLoop]: 664 mSDtfsCounter, 296 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1139 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 [2025-03-09 06:09:09,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1139 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2025-03-09 06:09:10,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2393. [2025-03-09 06:09:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2312 states have (on average 1.4031141868512111) internal successors, (3244), 2330 states have internal predecessors, (3244), 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) [2025-03-09 06:09:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3366 transitions. [2025-03-09 06:09:10,028 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3366 transitions. Word has length 80 [2025-03-09 06:09:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:10,029 INFO L471 AbstractCegarLoop]: Abstraction has 2393 states and 3366 transitions. [2025-03-09 06:09:10,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-09 06:09:10,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3366 transitions. [2025-03-09 06:09:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-09 06:09:10,029 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:10,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:10,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:09:10,030 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)] === [2025-03-09 06:09:10,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 151452928, now seen corresponding path program 1 times [2025-03-09 06:09:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321955349] [2025-03-09 06:09:10,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:10,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:09:10,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:09:10,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:10,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:10,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:10,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:10,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321955349] [2025-03-09 06:09:10,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321955349] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:10,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512992436] [2025-03-09 06:09:10,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:10,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:10,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:10,250 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) [2025-03-09 06:09:10,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:09:10,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:09:10,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:09:10,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:10,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:10,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:09:10,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:10,578 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512992436] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:10,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-09 06:09:10,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-03-09 06:09:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524036127] [2025-03-09 06:09:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:10,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:09:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:10,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:09:10,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:09:10,735 INFO L87 Difference]: Start difference. First operand 2393 states and 3366 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2025-03-09 06:09:10,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:10,852 INFO L93 Difference]: Finished difference Result 2393 states and 3366 transitions. [2025-03-09 06:09:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:10,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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 91 [2025-03-09 06:09:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:10,862 INFO L225 Difference]: With dead ends: 2393 [2025-03-09 06:09:10,862 INFO L226 Difference]: Without dead ends: 2392 [2025-03-09 06:09:10,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:09:10,864 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 1472 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:10,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 496 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2025-03-09 06:09:10,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2025-03-09 06:09:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2312 states have (on average 1.4009515570934257) internal successors, (3239), 2329 states have internal predecessors, (3239), 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) [2025-03-09 06:09:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3361 transitions. [2025-03-09 06:09:10,939 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3361 transitions. Word has length 91 [2025-03-09 06:09:10,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:10,939 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3361 transitions. [2025-03-09 06:09:10,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2025-03-09 06:09:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3361 transitions. [2025-03-09 06:09:10,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 06:09:10,940 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:10,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:10,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 06:09:11,140 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 [2025-03-09 06:09:11,141 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)] === [2025-03-09 06:09:11,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:11,142 INFO L85 PathProgramCache]: Analyzing trace with hash 400073469, now seen corresponding path program 1 times [2025-03-09 06:09:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103119474] [2025-03-09 06:09:11,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:11,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:09:11,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:09:11,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:11,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:11,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:11,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103119474] [2025-03-09 06:09:11,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103119474] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:11,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81503179] [2025-03-09 06:09:11,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:11,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:11,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:11,337 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) [2025-03-09 06:09:11,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:09:11,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:09:11,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:09:11,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:11,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:11,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:09:11,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:11,667 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:11,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81503179] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:11,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:11,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-03-09 06:09:11,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99422660] [2025-03-09 06:09:11,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:11,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 06:09:11,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:11,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 06:09:11,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:09:11,815 INFO L87 Difference]: Start difference. First operand 2392 states and 3361 transitions. Second operand has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 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) [2025-03-09 06:09:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:12,382 INFO L93 Difference]: Finished difference Result 4749 states and 6675 transitions. [2025-03-09 06:09:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:09:12,382 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 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 92 [2025-03-09 06:09:12,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:12,398 INFO L225 Difference]: With dead ends: 4749 [2025-03-09 06:09:12,398 INFO L226 Difference]: Without dead ends: 4748 [2025-03-09 06:09:12,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2025-03-09 06:09:12,401 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 1668 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:12,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 3457 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:09:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2025-03-09 06:09:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4369. [2025-03-09 06:09:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4213 states have (on average 1.3999525278898648) internal successors, (5898), 4233 states have internal predecessors, (5898), 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) [2025-03-09 06:09:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 6134 transitions. [2025-03-09 06:09:12,514 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 6134 transitions. Word has length 92 [2025-03-09 06:09:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:12,515 INFO L471 AbstractCegarLoop]: Abstraction has 4369 states and 6134 transitions. [2025-03-09 06:09:12,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 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) [2025-03-09 06:09:12,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 6134 transitions. [2025-03-09 06:09:12,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 06:09:12,516 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:12,516 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:12,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 06:09:12,716 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 [2025-03-09 06:09:12,717 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)] === [2025-03-09 06:09:12,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:12,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1897149704, now seen corresponding path program 1 times [2025-03-09 06:09:12,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:12,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817272983] [2025-03-09 06:09:12,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:12,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-09 06:09:12,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 06:09:12,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:12,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-09 06:09:12,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:12,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817272983] [2025-03-09 06:09:12,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817272983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:12,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:12,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:09:12,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470276241] [2025-03-09 06:09:12,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:12,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:12,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:12,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:12,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:09:12,979 INFO L87 Difference]: Start difference. First operand 4369 states and 6134 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 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) [2025-03-09 06:09:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:13,207 INFO L93 Difference]: Finished difference Result 5891 states and 8329 transitions. [2025-03-09 06:09:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:13,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 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 118 [2025-03-09 06:09:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:13,229 INFO L225 Difference]: With dead ends: 5891 [2025-03-09 06:09:13,229 INFO L226 Difference]: Without dead ends: 5889 [2025-03-09 06:09:13,231 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 [2025-03-09 06:09:13,231 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 390 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1418 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 [2025-03-09 06:09:13,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1418 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2025-03-09 06:09:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 4535. [2025-03-09 06:09:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 4370 states have (on average 1.3945080091533182) internal successors, (6094), 4391 states have internal predecessors, (6094), 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) [2025-03-09 06:09:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6351 transitions. [2025-03-09 06:09:13,388 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6351 transitions. Word has length 118 [2025-03-09 06:09:13,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:13,388 INFO L471 AbstractCegarLoop]: Abstraction has 4535 states and 6351 transitions. [2025-03-09 06:09:13,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 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) [2025-03-09 06:09:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6351 transitions. [2025-03-09 06:09:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-09 06:09:13,391 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:13,392 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:13,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:09:13,392 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)] === [2025-03-09 06:09:13,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 783839923, now seen corresponding path program 1 times [2025-03-09 06:09:13,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:13,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563930755] [2025-03-09 06:09:13,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:13,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:13,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:09:13,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:09:13,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:13,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:13,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:13,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563930755] [2025-03-09 06:09:13,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563930755] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:13,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510404740] [2025-03-09 06:09:13,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:13,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:13,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:13,744 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) [2025-03-09 06:09:13,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:09:13,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:09:14,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:09:14,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:14,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:14,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 06:09:14,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:09:14,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:14,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510404740] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:14,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:14,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-03-09 06:09:14,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808452327] [2025-03-09 06:09:14,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:14,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:09:14,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:14,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:09:14,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:09:14,095 INFO L87 Difference]: Start difference. First operand 4535 states and 6351 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2025-03-09 06:09:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:14,372 INFO L93 Difference]: Finished difference Result 8548 states and 12022 transitions. [2025-03-09 06:09:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:09:14,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 125 [2025-03-09 06:09:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:14,390 INFO L225 Difference]: With dead ends: 8548 [2025-03-09 06:09:14,390 INFO L226 Difference]: Without dead ends: 4329 [2025-03-09 06:09:14,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:09:14,398 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 85 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:14,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2780 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:09:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2025-03-09 06:09:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 4329. [2025-03-09 06:09:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4181 states have (on average 1.3996651518775411) internal successors, (5852), 4200 states have internal predecessors, (5852), 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) [2025-03-09 06:09:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6081 transitions. [2025-03-09 06:09:14,488 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6081 transitions. Word has length 125 [2025-03-09 06:09:14,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:14,489 INFO L471 AbstractCegarLoop]: Abstraction has 4329 states and 6081 transitions. [2025-03-09 06:09:14,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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) [2025-03-09 06:09:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6081 transitions. [2025-03-09 06:09:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-09 06:09:14,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:14,490 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] [2025-03-09 06:09:14,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:09:14,695 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 [2025-03-09 06:09:14,695 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)] === [2025-03-09 06:09:14,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:14,695 INFO L85 PathProgramCache]: Analyzing trace with hash 432839929, now seen corresponding path program 1 times [2025-03-09 06:09:14,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:14,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878152979] [2025-03-09 06:09:14,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:14,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:14,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:09:14,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:09:14,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:14,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:09:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878152979] [2025-03-09 06:09:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878152979] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847293063] [2025-03-09 06:09:15,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:15,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:15,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:15,027 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) [2025-03-09 06:09:15,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:09:15,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:09:15,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:09:15,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:15,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:15,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-09 06:09:15,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:15,326 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 [2025-03-09 06:09:15,338 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 [2025-03-09 06:09:15,349 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 [2025-03-09 06:09:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-09 06:09:16,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847293063] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:16,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:16,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-03-09 06:09:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370480380] [2025-03-09 06:09:16,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:16,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 06:09:16,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:16,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 06:09:16,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-03-09 06:09:16,030 INFO L87 Difference]: Start difference. First operand 4329 states and 6081 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 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) [2025-03-09 06:09:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:17,804 INFO L93 Difference]: Finished difference Result 9981 states and 14092 transitions. [2025-03-09 06:09:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:09:17,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 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 130 [2025-03-09 06:09:17,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:17,830 INFO L225 Difference]: With dead ends: 9981 [2025-03-09 06:09:17,834 INFO L226 Difference]: Without dead ends: 5697 [2025-03-09 06:09:17,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2025-03-09 06:09:17,844 INFO L435 NwaCegarLoop]: 478 mSDtfsCounter, 599 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:17,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 2582 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-09 06:09:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5697 states. [2025-03-09 06:09:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5697 to 4329. [2025-03-09 06:09:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4181 states have (on average 1.3994259746472135) internal successors, (5851), 4200 states have internal predecessors, (5851), 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) [2025-03-09 06:09:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6080 transitions. [2025-03-09 06:09:18,131 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6080 transitions. Word has length 130 [2025-03-09 06:09:18,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:18,131 INFO L471 AbstractCegarLoop]: Abstraction has 4329 states and 6080 transitions. [2025-03-09 06:09:18,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 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) [2025-03-09 06:09:18,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6080 transitions. [2025-03-09 06:09:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-09 06:09:18,134 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:18,134 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:18,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 06:09:18,339 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 [2025-03-09 06:09:18,340 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)] === [2025-03-09 06:09:18,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1081375989, now seen corresponding path program 1 times [2025-03-09 06:09:18,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:18,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510289331] [2025-03-09 06:09:18,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:18,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:18,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:09:18,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:09:18,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:18,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:09:19,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510289331] [2025-03-09 06:09:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510289331] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519350110] [2025-03-09 06:09:19,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:19,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:19,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:19,306 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) [2025-03-09 06:09:19,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 06:09:19,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:09:19,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:09:19,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:19,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:19,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 06:09:19,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:09:19,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:19,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519350110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:19,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:19,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-03-09 06:09:19,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076479003] [2025-03-09 06:09:19,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:19,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 06:09:19,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:19,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 06:09:19,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:09:19,993 INFO L87 Difference]: Start difference. First operand 4329 states and 6080 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2025-03-09 06:09:20,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:20,405 INFO L93 Difference]: Finished difference Result 6945 states and 9751 transitions. [2025-03-09 06:09:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:09:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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 131 [2025-03-09 06:09:20,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:20,424 INFO L225 Difference]: With dead ends: 6945 [2025-03-09 06:09:20,424 INFO L226 Difference]: Without dead ends: 2699 [2025-03-09 06:09:20,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:09:20,438 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 13 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:20,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3888 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 06:09:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2025-03-09 06:09:20,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2697. [2025-03-09 06:09:20,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2595 states have (on average 1.3988439306358382) internal successors, (3630), 2611 states have internal predecessors, (3630), 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) [2025-03-09 06:09:20,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3749 transitions. [2025-03-09 06:09:20,558 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3749 transitions. Word has length 131 [2025-03-09 06:09:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:20,562 INFO L471 AbstractCegarLoop]: Abstraction has 2697 states and 3749 transitions. [2025-03-09 06:09:20,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2025-03-09 06:09:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3749 transitions. [2025-03-09 06:09:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-09 06:09:20,563 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:20,564 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:20,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:20,764 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 [2025-03-09 06:09:20,768 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)] === [2025-03-09 06:09:20,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1063136397, now seen corresponding path program 1 times [2025-03-09 06:09:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:20,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605419426] [2025-03-09 06:09:20,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:20,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:20,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:09:21,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:09:21,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:21,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 06:09:21,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:21,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605419426] [2025-03-09 06:09:21,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605419426] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:21,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897961051] [2025-03-09 06:09:21,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:21,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:21,553 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) [2025-03-09 06:09:21,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 06:09:21,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:09:22,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:09:22,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:22,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:22,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-09 06:09:22,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:22,154 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 [2025-03-09 06:09:22,216 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 [2025-03-09 06:09:22,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2025-03-09 06:09:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-09 06:09:24,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:24,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897961051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:24,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:24,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2025-03-09 06:09:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413653972] [2025-03-09 06:09:24,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:24,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 06:09:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:24,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 06:09:24,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2025-03-09 06:09:24,916 INFO L87 Difference]: Start difference. First operand 2697 states and 3749 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:28,381 INFO L93 Difference]: Finished difference Result 6267 states and 8773 transitions. [2025-03-09 06:09:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 06:09:28,390 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 133 [2025-03-09 06:09:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:28,398 INFO L225 Difference]: With dead ends: 6267 [2025-03-09 06:09:28,398 INFO L226 Difference]: Without dead ends: 3615 [2025-03-09 06:09:28,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2025-03-09 06:09:28,403 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 780 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:28,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 4327 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-09 06:09:28,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2025-03-09 06:09:28,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 2697. [2025-03-09 06:09:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2595 states have (on average 1.3980732177263968) internal successors, (3628), 2611 states have internal predecessors, (3628), 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) [2025-03-09 06:09:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3747 transitions. [2025-03-09 06:09:28,520 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3747 transitions. Word has length 133 [2025-03-09 06:09:28,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:28,520 INFO L471 AbstractCegarLoop]: Abstraction has 2697 states and 3747 transitions. [2025-03-09 06:09:28,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3747 transitions. [2025-03-09 06:09:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-09 06:09:28,521 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:28,521 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:28,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 06:09:28,722 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 [2025-03-09 06:09:28,722 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)] === [2025-03-09 06:09:28,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash 328570688, now seen corresponding path program 1 times [2025-03-09 06:09:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:28,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930522498] [2025-03-09 06:09:28,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:28,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:28,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-09 06:09:29,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-09 06:09:29,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:29,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 06:09:29,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:29,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930522498] [2025-03-09 06:09:29,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930522498] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:29,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965245323] [2025-03-09 06:09:29,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:29,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:29,570 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) [2025-03-09 06:09:29,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 06:09:29,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-09 06:09:30,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-09 06:09:30,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:30,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:30,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 06:09:30,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:09:30,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 06:09:30,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965245323] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:30,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:30,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2025-03-09 06:09:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191193438] [2025-03-09 06:09:30,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:30,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 06:09:30,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:30,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 06:09:30,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-03-09 06:09:30,429 INFO L87 Difference]: Start difference. First operand 2697 states and 3747 transitions. Second operand has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 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) [2025-03-09 06:09:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:30,940 INFO L93 Difference]: Finished difference Result 5364 states and 7475 transitions. [2025-03-09 06:09:30,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-09 06:09:30,942 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 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 [2025-03-09 06:09:30,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:30,948 INFO L225 Difference]: With dead ends: 5364 [2025-03-09 06:09:30,948 INFO L226 Difference]: Without dead ends: 2759 [2025-03-09 06:09:30,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2025-03-09 06:09:30,952 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 21 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:30,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5840 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:09:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2025-03-09 06:09:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2737. [2025-03-09 06:09:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2634 states have (on average 1.3982536066818527) internal successors, (3683), 2647 states have internal predecessors, (3683), 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) [2025-03-09 06:09:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3798 transitions. [2025-03-09 06:09:31,035 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3798 transitions. Word has length 135 [2025-03-09 06:09:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:31,035 INFO L471 AbstractCegarLoop]: Abstraction has 2737 states and 3798 transitions. [2025-03-09 06:09:31,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 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) [2025-03-09 06:09:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3798 transitions. [2025-03-09 06:09:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-09 06:09:31,036 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:31,036 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:31,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 06:09:31,240 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 [2025-03-09 06:09:31,240 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:31,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -583534242, now seen corresponding path program 2 times [2025-03-09 06:09:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:31,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462555649] [2025-03-09 06:09:31,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:09:31,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:31,283 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-03-09 06:09:31,387 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 139 of 139 statements. [2025-03-09 06:09:31,387 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:09:31,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-09 06:09:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462555649] [2025-03-09 06:09:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462555649] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615964141] [2025-03-09 06:09:31,766 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:09:31,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:31,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:31,772 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) [2025-03-09 06:09:31,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 06:09:32,017 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-03-09 06:09:32,030 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 139 statements. [2025-03-09 06:09:32,031 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:09:32,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:32,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:09:32,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:32,045 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 [2025-03-09 06:09:32,056 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-09 06:09:32,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:32,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615964141] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:32,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:32,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-03-09 06:09:32,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697686117] [2025-03-09 06:09:32,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:32,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:09:32,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:32,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:09:32,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:09:32,057 INFO L87 Difference]: Start difference. First operand 2737 states and 3798 transitions. Second operand has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 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) [2025-03-09 06:09:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:32,172 INFO L93 Difference]: Finished difference Result 2737 states and 3798 transitions. [2025-03-09 06:09:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 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 139 [2025-03-09 06:09:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:32,179 INFO L225 Difference]: With dead ends: 2737 [2025-03-09 06:09:32,179 INFO L226 Difference]: Without dead ends: 2736 [2025-03-09 06:09:32,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:09:32,180 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 1 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:32,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 988 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2025-03-09 06:09:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2025-03-09 06:09:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2634 states have (on average 1.3959757023538344) internal successors, (3677), 2646 states have internal predecessors, (3677), 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) [2025-03-09 06:09:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3792 transitions. [2025-03-09 06:09:32,235 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3792 transitions. Word has length 139 [2025-03-09 06:09:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:32,236 INFO L471 AbstractCegarLoop]: Abstraction has 2736 states and 3792 transitions. [2025-03-09 06:09:32,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 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) [2025-03-09 06:09:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3792 transitions. [2025-03-09 06:09:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-09 06:09:32,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:32,237 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:32,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 06:09:32,437 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 [2025-03-09 06:09:32,438 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)] === [2025-03-09 06:09:32,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:32,438 INFO L85 PathProgramCache]: Analyzing trace with hash -909691628, now seen corresponding path program 1 times [2025-03-09 06:09:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:32,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915794111] [2025-03-09 06:09:32,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:32,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:32,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-09 06:09:32,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-09 06:09:32,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:32,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-09 06:09:32,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:32,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915794111] [2025-03-09 06:09:32,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915794111] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:32,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955702547] [2025-03-09 06:09:32,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:32,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:32,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:32,925 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) [2025-03-09 06:09:32,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 06:09:33,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-09 06:09:33,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-09 06:09:33,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:33,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:33,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 06:09:33,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-09 06:09:33,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-09 06:09:33,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955702547] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:33,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:33,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-03-09 06:09:33,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436535167] [2025-03-09 06:09:33,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:33,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-09 06:09:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:33,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-09 06:09:33,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-03-09 06:09:33,701 INFO L87 Difference]: Start difference. First operand 2736 states and 3792 transitions. Second operand has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 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) [2025-03-09 06:09:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:34,652 INFO L93 Difference]: Finished difference Result 5471 states and 7617 transitions. [2025-03-09 06:09:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 06:09:34,654 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 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 140 [2025-03-09 06:09:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:34,661 INFO L225 Difference]: With dead ends: 5471 [2025-03-09 06:09:34,661 INFO L226 Difference]: Without dead ends: 2812 [2025-03-09 06:09:34,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2025-03-09 06:09:34,665 INFO L435 NwaCegarLoop]: 478 mSDtfsCounter, 60 mSDsluCounter, 6167 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 6645 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:34,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 6645 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:09:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2025-03-09 06:09:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 2781. [2025-03-09 06:09:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2679 states have (on average 1.3904441955953715) internal successors, (3725), 2691 states have internal predecessors, (3725), 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) [2025-03-09 06:09:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3840 transitions. [2025-03-09 06:09:34,722 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3840 transitions. Word has length 140 [2025-03-09 06:09:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:34,723 INFO L471 AbstractCegarLoop]: Abstraction has 2781 states and 3840 transitions. [2025-03-09 06:09:34,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 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) [2025-03-09 06:09:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3840 transitions. [2025-03-09 06:09:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-09 06:09:34,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:34,724 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:34,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:34,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:34,924 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:34,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash -182608021, now seen corresponding path program 2 times [2025-03-09 06:09:34,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:34,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409110460] [2025-03-09 06:09:34,925 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:09:34,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:34,964 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 149 statements into 2 equivalence classes. [2025-03-09 06:09:35,085 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 149 of 149 statements. [2025-03-09 06:09:35,086 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:09:35,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-09 06:09:35,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:35,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409110460] [2025-03-09 06:09:35,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409110460] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:35,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344989219] [2025-03-09 06:09:35,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:09:35,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:35,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:35,749 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:35,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 06:09:36,016 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 149 statements into 2 equivalence classes. [2025-03-09 06:09:36,120 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 149 of 149 statements. [2025-03-09 06:09:36,121 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:09:36,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:36,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 06:09:36,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:36,129 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 [2025-03-09 06:09:36,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2025-03-09 06:09:36,530 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 29 treesize of output 13 [2025-03-09 06:09:36,556 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-09 06:09:36,556 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:42,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344989219] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:42,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 06:09:42,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 22 [2025-03-09 06:09:42,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102137812] [2025-03-09 06:09:42,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:42,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-09 06:09:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:42,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-09 06:09:42,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2025-03-09 06:09:42,898 INFO L87 Difference]: Start difference. First operand 2781 states and 3840 transitions. Second operand has 22 states, 22 states have (on average 11.045454545454545) internal successors, (243), 22 states have internal predecessors, (243), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 06:09:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:44,173 INFO L93 Difference]: Finished difference Result 6930 states and 9663 transitions. [2025-03-09 06:09:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-09 06:09:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.045454545454545) internal successors, (243), 22 states have internal predecessors, (243), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 149 [2025-03-09 06:09:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:44,181 INFO L225 Difference]: With dead ends: 6930 [2025-03-09 06:09:44,181 INFO L226 Difference]: Without dead ends: 4250 [2025-03-09 06:09:44,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 161 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=170, Invalid=1552, Unknown=0, NotChecked=0, Total=1722 [2025-03-09 06:09:44,185 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 972 mSDsluCounter, 7106 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 7754 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:44,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 7754 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 06:09:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2025-03-09 06:09:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3358. [2025-03-09 06:09:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3245 states have (on average 1.4012326656394454) internal successors, (4547), 3260 states have internal predecessors, (4547), 60 states have call successors, (60), 47 states have call predecessors, (60), 41 states have return successors, (67), 50 states have call predecessors, (67), 60 states have call successors, (67) [2025-03-09 06:09:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 4674 transitions. [2025-03-09 06:09:44,265 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 4674 transitions. Word has length 149 [2025-03-09 06:09:44,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:44,265 INFO L471 AbstractCegarLoop]: Abstraction has 3358 states and 4674 transitions. [2025-03-09 06:09:44,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.045454545454545) internal successors, (243), 22 states have internal predecessors, (243), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 06:09:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 4674 transitions. [2025-03-09 06:09:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-09 06:09:44,267 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:44,267 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:44,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:44,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2025-03-09 06:09:44,467 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:44,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1321200308, now seen corresponding path program 1 times [2025-03-09 06:09:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095416866] [2025-03-09 06:09:44,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:44,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:44,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-09 06:09:44,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-09 06:09:44,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:44,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-03-09 06:09:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095416866] [2025-03-09 06:09:44,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095416866] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:44,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878742009] [2025-03-09 06:09:44,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:44,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:44,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:44,958 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:44,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 06:09:45,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-09 06:09:45,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-09 06:09:45,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:45,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:45,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 06:09:45,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-03-09 06:09:45,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-03-09 06:09:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878742009] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:45,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10] total 18 [2025-03-09 06:09:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897171905] [2025-03-09 06:09:45,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:45,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:09:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:45,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:09:45,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:09:45,700 INFO L87 Difference]: Start difference. First operand 3358 states and 4674 transitions. Second operand has 19 states, 18 states have (on average 10.38888888888889) internal successors, (187), 15 states have internal predecessors, (187), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2025-03-09 06:09:46,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:46,358 INFO L93 Difference]: Finished difference Result 8790 states and 12554 transitions. [2025-03-09 06:09:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-09 06:09:46,359 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.38888888888889) internal successors, (187), 15 states have internal predecessors, (187), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 169 [2025-03-09 06:09:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:46,373 INFO L225 Difference]: With dead ends: 8790 [2025-03-09 06:09:46,373 INFO L226 Difference]: Without dead ends: 6933 [2025-03-09 06:09:46,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=299, Invalid=693, Unknown=0, NotChecked=0, Total=992 [2025-03-09 06:09:46,379 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 7124 mSDsluCounter, 5305 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7126 SdHoareTripleChecker+Valid, 6298 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:46,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7126 Valid, 6298 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:09:46,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6933 states. [2025-03-09 06:09:46,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6933 to 4387. [2025-03-09 06:09:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4290 states have (on average 1.4272727272727272) internal successors, (6123), 4304 states have internal predecessors, (6123), 50 states have call successors, (50), 41 states have call predecessors, (50), 36 states have return successors, (51), 41 states have call predecessors, (51), 50 states have call successors, (51) [2025-03-09 06:09:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 6224 transitions. [2025-03-09 06:09:46,514 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 6224 transitions. Word has length 169 [2025-03-09 06:09:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:46,515 INFO L471 AbstractCegarLoop]: Abstraction has 4387 states and 6224 transitions. [2025-03-09 06:09:46,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.38888888888889) internal successors, (187), 15 states have internal predecessors, (187), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2025-03-09 06:09:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 6224 transitions. [2025-03-09 06:09:46,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-03-09 06:09:46,517 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:46,517 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:46,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:46,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:46,718 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:46,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:46,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1470180509, now seen corresponding path program 1 times [2025-03-09 06:09:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853249660] [2025-03-09 06:09:46,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:46,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:46,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-03-09 06:09:46,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-03-09 06:09:46,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:46,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:46,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853249660] [2025-03-09 06:09:46,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853249660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:46,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:46,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:09:46,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065565656] [2025-03-09 06:09:46,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:46,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:09:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:46,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:09:46,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:09:46,847 INFO L87 Difference]: Start difference. First operand 4387 states and 6224 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:46,978 INFO L93 Difference]: Finished difference Result 5528 states and 7862 transitions. [2025-03-09 06:09:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 215 [2025-03-09 06:09:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:46,985 INFO L225 Difference]: With dead ends: 5528 [2025-03-09 06:09:46,985 INFO L226 Difference]: Without dead ends: 2139 [2025-03-09 06:09:46,988 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 [2025-03-09 06:09:46,989 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 19 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:46,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 965 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2025-03-09 06:09:47,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1946. [2025-03-09 06:09:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1865 states have (on average 1.3544235924932977) internal successors, (2526), 1878 states have internal predecessors, (2526), 39 states have call successors, (39), 35 states have call predecessors, (39), 32 states have return successors, (40), 32 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-09 06:09:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2605 transitions. [2025-03-09 06:09:47,038 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2605 transitions. Word has length 215 [2025-03-09 06:09:47,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:47,038 INFO L471 AbstractCegarLoop]: Abstraction has 1946 states and 2605 transitions. [2025-03-09 06:09:47,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2605 transitions. [2025-03-09 06:09:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-09 06:09:47,039 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:47,040 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:47,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-09 06:09:47,040 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:47,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash -567472063, now seen corresponding path program 1 times [2025-03-09 06:09:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:47,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081439372] [2025-03-09 06:09:47,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:47,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:47,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-03-09 06:09:47,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-03-09 06:09:47,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:47,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:47,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081439372] [2025-03-09 06:09:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081439372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:47,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:47,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:09:47,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155835869] [2025-03-09 06:09:47,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:47,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:09:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:47,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:09:47,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:09:47,302 INFO L87 Difference]: Start difference. First operand 1946 states and 2605 transitions. Second operand has 3 states, 2 states have (on average 87.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 06:09:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:47,410 INFO L93 Difference]: Finished difference Result 2259 states and 3063 transitions. [2025-03-09 06:09:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:09:47,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 87.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 217 [2025-03-09 06:09:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:47,415 INFO L225 Difference]: With dead ends: 2259 [2025-03-09 06:09:47,415 INFO L226 Difference]: Without dead ends: 2257 [2025-03-09 06:09:47,416 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 [2025-03-09 06:09:47,416 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 303 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:47,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 752 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2025-03-09 06:09:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2228. [2025-03-09 06:09:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2148 states have (on average 1.3705772811918064) internal successors, (2944), 2160 states have internal predecessors, (2944), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3021 transitions. [2025-03-09 06:09:47,479 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3021 transitions. Word has length 217 [2025-03-09 06:09:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:47,480 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 3021 transitions. [2025-03-09 06:09:47,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 87.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 06:09:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3021 transitions. [2025-03-09 06:09:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2025-03-09 06:09:47,481 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:47,481 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:47,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-09 06:09:47,482 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:47,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:47,483 INFO L85 PathProgramCache]: Analyzing trace with hash 563215008, now seen corresponding path program 1 times [2025-03-09 06:09:47,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:47,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383112659] [2025-03-09 06:09:47,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:47,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:47,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 227 statements into 1 equivalence classes. [2025-03-09 06:09:47,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 227 of 227 statements. [2025-03-09 06:09:47,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:47,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-03-09 06:09:48,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:48,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383112659] [2025-03-09 06:09:48,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383112659] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:48,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285333714] [2025-03-09 06:09:48,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:48,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:48,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:48,188 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:48,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 06:09:48,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 227 statements into 1 equivalence classes. [2025-03-09 06:09:48,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 227 of 227 statements. [2025-03-09 06:09:48,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:48,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:48,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:09:48,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:48,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-09 06:09:48,770 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 17 treesize of output 9 [2025-03-09 06:09:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-03-09 06:09:48,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:48,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285333714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:48,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:48,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-09 06:09:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680534346] [2025-03-09 06:09:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:48,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:09:48,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:48,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:09:48,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:09:48,779 INFO L87 Difference]: Start difference. First operand 2228 states and 3021 transitions. Second operand has 5 states, 4 states have (on average 46.25) internal successors, (185), 5 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:48,959 INFO L93 Difference]: Finished difference Result 2396 states and 3243 transitions. [2025-03-09 06:09:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 46.25) internal successors, (185), 5 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 227 [2025-03-09 06:09:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:48,963 INFO L225 Difference]: With dead ends: 2396 [2025-03-09 06:09:48,963 INFO L226 Difference]: Without dead ends: 2395 [2025-03-09 06:09:48,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:09:48,964 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 398 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:48,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1201 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2025-03-09 06:09:49,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2227. [2025-03-09 06:09:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 2148 states have (on average 1.3682495344506518) internal successors, (2939), 2159 states have internal predecessors, (2939), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3016 transitions. [2025-03-09 06:09:49,019 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3016 transitions. Word has length 227 [2025-03-09 06:09:49,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:49,019 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 3016 transitions. [2025-03-09 06:09:49,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 46.25) internal successors, (185), 5 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3016 transitions. [2025-03-09 06:09:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-03-09 06:09:49,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:49,021 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:49,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:49,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:49,222 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:49,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash -283305802, now seen corresponding path program 1 times [2025-03-09 06:09:49,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:49,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305611737] [2025-03-09 06:09:49,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:49,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:49,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-09 06:09:49,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-09 06:09:49,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:49,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:49,417 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:49,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305611737] [2025-03-09 06:09:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305611737] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910807441] [2025-03-09 06:09:49,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:49,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:49,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:49,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:49,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 06:09:49,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-09 06:09:49,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-09 06:09:49,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:49,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:49,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 06:09:49,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-03-09 06:09:49,916 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:49,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910807441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:49,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:49,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2025-03-09 06:09:49,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930763525] [2025-03-09 06:09:49,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:49,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:49,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:49,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:49,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:09:49,917 INFO L87 Difference]: Start difference. First operand 2227 states and 3016 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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) [2025-03-09 06:09:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:50,073 INFO L93 Difference]: Finished difference Result 3142 states and 4309 transitions. [2025-03-09 06:09:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:50,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 228 [2025-03-09 06:09:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:50,077 INFO L225 Difference]: With dead ends: 3142 [2025-03-09 06:09:50,077 INFO L226 Difference]: Without dead ends: 2245 [2025-03-09 06:09:50,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:09:50,078 INFO L435 NwaCegarLoop]: 464 mSDtfsCounter, 105 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:50,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1308 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:50,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2025-03-09 06:09:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2227. [2025-03-09 06:09:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 2148 states have (on average 1.3486964618249535) internal successors, (2897), 2159 states have internal predecessors, (2897), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2974 transitions. [2025-03-09 06:09:50,177 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2974 transitions. Word has length 228 [2025-03-09 06:09:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:50,178 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 2974 transitions. [2025-03-09 06:09:50,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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) [2025-03-09 06:09:50,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2974 transitions. [2025-03-09 06:09:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-03-09 06:09:50,179 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:50,179 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:50,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:50,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-09 06:09:50,380 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:50,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1412022083, now seen corresponding path program 1 times [2025-03-09 06:09:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:50,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664495239] [2025-03-09 06:09:50,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:50,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:50,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-09 06:09:50,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-09 06:09:50,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:50,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:50,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:50,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664495239] [2025-03-09 06:09:50,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664495239] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:50,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590382626] [2025-03-09 06:09:50,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:50,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:50,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:50,617 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:50,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 06:09:51,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-09 06:09:51,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-09 06:09:51,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:51,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:51,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 06:09:51,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:51,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:09:51,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590382626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:51,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:09:51,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2025-03-09 06:09:51,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97468084] [2025-03-09 06:09:51,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:51,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:09:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:51,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:09:51,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:51,321 INFO L87 Difference]: Start difference. First operand 2227 states and 2974 transitions. Second operand has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:51,457 INFO L93 Difference]: Finished difference Result 2228 states and 2974 transitions. [2025-03-09 06:09:51,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:09:51,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 228 [2025-03-09 06:09:51,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:51,460 INFO L225 Difference]: With dead ends: 2228 [2025-03-09 06:09:51,460 INFO L226 Difference]: Without dead ends: 2227 [2025-03-09 06:09:51,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:51,461 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 538 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:51,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1080 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2025-03-09 06:09:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2226. [2025-03-09 06:09:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2148 states have (on average 1.3472998137802608) internal successors, (2894), 2158 states have internal predecessors, (2894), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2971 transitions. [2025-03-09 06:09:51,523 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2971 transitions. Word has length 228 [2025-03-09 06:09:51,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:51,524 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 2971 transitions. [2025-03-09 06:09:51,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:09:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2971 transitions. [2025-03-09 06:09:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-03-09 06:09:51,525 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:51,525 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-09 06:09:51,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-09 06:09:51,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-09 06:09:51,727 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:51,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash 279796415, now seen corresponding path program 1 times [2025-03-09 06:09:51,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:51,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809186862] [2025-03-09 06:09:51,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:51,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:51,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-09 06:09:51,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-09 06:09:51,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:51,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2025-03-09 06:09:51,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:51,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809186862] [2025-03-09 06:09:51,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809186862] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:09:51,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:09:51,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:09:51,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790984115] [2025-03-09 06:09:51,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:09:51,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:09:51,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:51,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:09:51,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:09:51,985 INFO L87 Difference]: Start difference. First operand 2226 states and 2971 transitions. Second operand has 5 states, 4 states have (on average 46.5) internal successors, (186), 5 states have internal predecessors, (186), 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) [2025-03-09 06:09:52,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:52,169 INFO L93 Difference]: Finished difference Result 2393 states and 3190 transitions. [2025-03-09 06:09:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:09:52,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 46.5) internal successors, (186), 5 states have internal predecessors, (186), 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 228 [2025-03-09 06:09:52,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:52,173 INFO L225 Difference]: With dead ends: 2393 [2025-03-09 06:09:52,174 INFO L226 Difference]: Without dead ends: 2392 [2025-03-09 06:09:52,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:09:52,174 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 388 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:52,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1641 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2025-03-09 06:09:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2225. [2025-03-09 06:09:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2148 states have (on average 1.344972067039106) internal successors, (2889), 2157 states have internal predecessors, (2889), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2966 transitions. [2025-03-09 06:09:52,263 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2966 transitions. Word has length 228 [2025-03-09 06:09:52,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:52,263 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 2966 transitions. [2025-03-09 06:09:52,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 46.5) internal successors, (186), 5 states have internal predecessors, (186), 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) [2025-03-09 06:09:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2966 transitions. [2025-03-09 06:09:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-03-09 06:09:52,264 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:52,265 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:52,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-09 06:09:52,265 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:52,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash -823011518, now seen corresponding path program 1 times [2025-03-09 06:09:52,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:52,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766027490] [2025-03-09 06:09:52,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:52,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:52,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-03-09 06:09:52,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-03-09 06:09:52,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:52,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:52,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:52,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766027490] [2025-03-09 06:09:52,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766027490] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:52,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85548351] [2025-03-09 06:09:52,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:52,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:52,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:52,452 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:52,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 06:09:52,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-03-09 06:09:53,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-03-09 06:09:53,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:53,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:53,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 06:09:53,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:53,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-03-09 06:09:53,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85548351] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:09:53,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:09:53,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 3] total 6 [2025-03-09 06:09:53,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304745480] [2025-03-09 06:09:53,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:53,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:09:53,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:53,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:09:53,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:09:53,303 INFO L87 Difference]: Start difference. First operand 2225 states and 2966 transitions. Second operand has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 7 states have internal predecessors, (530), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-09 06:09:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:09:53,516 INFO L93 Difference]: Finished difference Result 4075 states and 5513 transitions. [2025-03-09 06:09:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:09:53,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 7 states have internal predecessors, (530), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 229 [2025-03-09 06:09:53,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:09:53,522 INFO L225 Difference]: With dead ends: 4075 [2025-03-09 06:09:53,522 INFO L226 Difference]: Without dead ends: 4074 [2025-03-09 06:09:53,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:09:53,522 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 1492 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:09:53,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1735 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:09:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2025-03-09 06:09:53,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 3908. [2025-03-09 06:09:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 3831 states have (on average 1.3719655442443226) internal successors, (5256), 3840 states have internal predecessors, (5256), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:09:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5333 transitions. [2025-03-09 06:09:53,612 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5333 transitions. Word has length 229 [2025-03-09 06:09:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:09:53,613 INFO L471 AbstractCegarLoop]: Abstraction has 3908 states and 5333 transitions. [2025-03-09 06:09:53,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 7 states have internal predecessors, (530), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-09 06:09:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5333 transitions. [2025-03-09 06:09:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2025-03-09 06:09:53,614 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:09:53,614 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:09:53,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-09 06:09:53,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-09 06:09:53,815 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:09:53,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:09:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1038128119, now seen corresponding path program 1 times [2025-03-09 06:09:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:09:53,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299881182] [2025-03-09 06:09:53,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:09:53,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 235 statements into 1 equivalence classes. [2025-03-09 06:09:54,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 235 of 235 statements. [2025-03-09 06:09:54,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:54,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 64 proven. 215 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-09 06:09:55,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:09:55,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299881182] [2025-03-09 06:09:55,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299881182] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:55,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884373430] [2025-03-09 06:09:55,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:09:55,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:09:55,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:09:55,101 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:09:55,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 06:09:55,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 235 statements into 1 equivalence classes. [2025-03-09 06:09:55,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 235 of 235 statements. [2025-03-09 06:09:55,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:09:55,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:09:55,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-09 06:09:55,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:09:55,924 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 [2025-03-09 06:09:56,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-09 06:09:56,349 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 [2025-03-09 06:09:56,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2025-03-09 06:09:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 57 proven. 34 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-03-09 06:09:56,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:09:58,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884373430] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:09:58,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 06:09:58,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 32 [2025-03-09 06:09:58,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445351827] [2025-03-09 06:09:58,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 06:09:58,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-09 06:09:58,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:09:58,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-09 06:09:58,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1644, Unknown=0, NotChecked=0, Total=1806 [2025-03-09 06:09:58,905 INFO L87 Difference]: Start difference. First operand 3908 states and 5333 transitions. Second operand has 32 states, 32 states have (on average 10.125) internal successors, (324), 32 states have internal predecessors, (324), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 06:10:04,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:04,168 INFO L93 Difference]: Finished difference Result 9065 states and 12348 transitions. [2025-03-09 06:10:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-03-09 06:10:04,169 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.125) internal successors, (324), 32 states have internal predecessors, (324), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 235 [2025-03-09 06:10:04,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:04,176 INFO L225 Difference]: With dead ends: 9065 [2025-03-09 06:10:04,176 INFO L226 Difference]: Without dead ends: 5268 [2025-03-09 06:10:04,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 316 SyntacticMatches, 8 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=376, Invalid=4046, Unknown=0, NotChecked=0, Total=4422 [2025-03-09 06:10:04,182 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 1634 mSDsluCounter, 11136 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 11721 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:04,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 11721 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4899 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-03-09 06:10:04,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2025-03-09 06:10:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 3968. [2025-03-09 06:10:04,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3891 states have (on average 1.3685427910562837) internal successors, (5325), 3900 states have internal predecessors, (5325), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5402 transitions. [2025-03-09 06:10:04,294 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5402 transitions. Word has length 235 [2025-03-09 06:10:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:04,295 INFO L471 AbstractCegarLoop]: Abstraction has 3968 states and 5402 transitions. [2025-03-09 06:10:04,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.125) internal successors, (324), 32 states have internal predecessors, (324), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 06:10:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5402 transitions. [2025-03-09 06:10:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-09 06:10:04,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:04,298 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:04,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-09 06:10:04,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-09 06:10:04,499 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:04,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:04,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1043231380, now seen corresponding path program 1 times [2025-03-09 06:10:04,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:04,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277667360] [2025-03-09 06:10:04,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:04,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:04,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-09 06:10:04,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-09 06:10:04,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:04,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2025-03-09 06:10:04,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277667360] [2025-03-09 06:10:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277667360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:10:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:10:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:10:04,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915737430] [2025-03-09 06:10:04,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:10:04,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:10:04,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:04,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:10:04,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:10:04,677 INFO L87 Difference]: Start difference. First operand 3968 states and 5402 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2025-03-09 06:10:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:04,842 INFO L93 Difference]: Finished difference Result 7901 states and 10765 transitions. [2025-03-09 06:10:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:10:04,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 237 [2025-03-09 06:10:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:04,848 INFO L225 Difference]: With dead ends: 7901 [2025-03-09 06:10:04,848 INFO L226 Difference]: Without dead ends: 3968 [2025-03-09 06:10:04,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:10:04,851 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 1 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:04,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 930 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:10:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2025-03-09 06:10:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3968. [2025-03-09 06:10:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3891 states have (on average 1.3623747108712414) internal successors, (5301), 3900 states have internal predecessors, (5301), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5378 transitions. [2025-03-09 06:10:04,950 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5378 transitions. Word has length 237 [2025-03-09 06:10:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:04,950 INFO L471 AbstractCegarLoop]: Abstraction has 3968 states and 5378 transitions. [2025-03-09 06:10:04,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2025-03-09 06:10:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5378 transitions. [2025-03-09 06:10:04,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-09 06:10:04,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:04,953 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:04,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-09 06:10:04,954 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:04,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1700644017, now seen corresponding path program 1 times [2025-03-09 06:10:04,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:04,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315018249] [2025-03-09 06:10:04,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:04,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:05,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-09 06:10:05,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-09 06:10:05,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:05,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-03-09 06:10:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:05,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315018249] [2025-03-09 06:10:05,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315018249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:10:05,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:10:05,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:10:05,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830028404] [2025-03-09 06:10:05,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:10:05,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:10:05,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:05,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:10:05,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:10:05,147 INFO L87 Difference]: Start difference. First operand 3968 states and 5378 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:10:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:05,316 INFO L93 Difference]: Finished difference Result 7867 states and 10686 transitions. [2025-03-09 06:10:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:10:05,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 237 [2025-03-09 06:10:05,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:05,323 INFO L225 Difference]: With dead ends: 7867 [2025-03-09 06:10:05,323 INFO L226 Difference]: Without dead ends: 3932 [2025-03-09 06:10:05,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:10:05,327 INFO L435 NwaCegarLoop]: 463 mSDtfsCounter, 9 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:05,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1370 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:10:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2025-03-09 06:10:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3932. [2025-03-09 06:10:05,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 3855 states have (on average 1.3636835278858626) internal successors, (5257), 3864 states have internal predecessors, (5257), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5334 transitions. [2025-03-09 06:10:05,452 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5334 transitions. Word has length 237 [2025-03-09 06:10:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:05,453 INFO L471 AbstractCegarLoop]: Abstraction has 3932 states and 5334 transitions. [2025-03-09 06:10:05,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:10:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5334 transitions. [2025-03-09 06:10:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-03-09 06:10:05,454 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:05,455 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:05,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-09 06:10:05,455 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:05,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:05,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1117056741, now seen corresponding path program 1 times [2025-03-09 06:10:05,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:05,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400238460] [2025-03-09 06:10:05,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:05,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:05,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-03-09 06:10:05,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-03-09 06:10:05,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:05,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 65 proven. 252 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-09 06:10:06,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:06,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400238460] [2025-03-09 06:10:06,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400238460] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:10:06,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140974705] [2025-03-09 06:10:06,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:06,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:10:06,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:10:06,749 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:10:06,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 06:10:07,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-03-09 06:10:07,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-03-09 06:10:07,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:07,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:07,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 06:10:07,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:10:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-03-09 06:10:07,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:10:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140974705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:10:07,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:10:07,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2025-03-09 06:10:07,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324566000] [2025-03-09 06:10:07,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:10:07,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:10:07,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:07,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:10:07,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:10:07,486 INFO L87 Difference]: Start difference. First operand 3932 states and 5334 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-09 06:10:07,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:07,666 INFO L93 Difference]: Finished difference Result 7552 states and 10310 transitions. [2025-03-09 06:10:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:10:07,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 238 [2025-03-09 06:10:07,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:07,677 INFO L225 Difference]: With dead ends: 7552 [2025-03-09 06:10:07,677 INFO L226 Difference]: Without dead ends: 3932 [2025-03-09 06:10:07,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:10:07,702 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 13 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:07,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1296 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:10:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2025-03-09 06:10:07,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3932. [2025-03-09 06:10:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 3855 states have (on average 1.3623865110246434) internal successors, (5252), 3864 states have internal predecessors, (5252), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:07,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5329 transitions. [2025-03-09 06:10:07,804 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5329 transitions. Word has length 238 [2025-03-09 06:10:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:07,804 INFO L471 AbstractCegarLoop]: Abstraction has 3932 states and 5329 transitions. [2025-03-09 06:10:07,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-09 06:10:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5329 transitions. [2025-03-09 06:10:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-03-09 06:10:07,806 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:07,806 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:07,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-09 06:10:08,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-09 06:10:08,007 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:08,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:08,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1234549240, now seen corresponding path program 1 times [2025-03-09 06:10:08,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:08,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169818972] [2025-03-09 06:10:08,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:08,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:08,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-03-09 06:10:08,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-03-09 06:10:08,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:08,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-03-09 06:10:08,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:08,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169818972] [2025-03-09 06:10:08,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169818972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:10:08,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:10:08,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 06:10:08,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636394697] [2025-03-09 06:10:08,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:10:08,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:10:08,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:08,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:10:08,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:10:08,370 INFO L87 Difference]: Start difference. First operand 3932 states and 5329 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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) [2025-03-09 06:10:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:08,626 INFO L93 Difference]: Finished difference Result 7567 states and 10325 transitions. [2025-03-09 06:10:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:10:08,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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 239 [2025-03-09 06:10:08,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:08,635 INFO L225 Difference]: With dead ends: 7567 [2025-03-09 06:10:08,636 INFO L226 Difference]: Without dead ends: 3947 [2025-03-09 06:10:08,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:10:08,640 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 4 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:08,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1700 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:10:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2025-03-09 06:10:08,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2025-03-09 06:10:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3870 states have (on average 1.3609819121447029) internal successors, (5267), 3879 states have internal predecessors, (5267), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:08,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5344 transitions. [2025-03-09 06:10:08,767 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5344 transitions. Word has length 239 [2025-03-09 06:10:08,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:08,767 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 5344 transitions. [2025-03-09 06:10:08,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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) [2025-03-09 06:10:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5344 transitions. [2025-03-09 06:10:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-03-09 06:10:08,769 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:08,770 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:08,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-09 06:10:08,770 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:08,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 237455113, now seen corresponding path program 1 times [2025-03-09 06:10:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896210438] [2025-03-09 06:10:08,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:08,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-03-09 06:10:08,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-03-09 06:10:08,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:08,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-03-09 06:10:09,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896210438] [2025-03-09 06:10:09,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896210438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:10:09,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:10:09,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 06:10:09,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451562182] [2025-03-09 06:10:09,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:10:09,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:10:09,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:09,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:10:09,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:10:09,110 INFO L87 Difference]: Start difference. First operand 3947 states and 5344 transitions. Second operand has 7 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:10:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:09,494 INFO L93 Difference]: Finished difference Result 7875 states and 10681 transitions. [2025-03-09 06:10:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:10:09,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2025-03-09 06:10:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:09,500 INFO L225 Difference]: With dead ends: 7875 [2025-03-09 06:10:09,501 INFO L226 Difference]: Without dead ends: 3977 [2025-03-09 06:10:09,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:10:09,505 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 8 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:09,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2484 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 06:10:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2025-03-09 06:10:09,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3971. [2025-03-09 06:10:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3971 states, 3894 states have (on average 1.3602978941961992) internal successors, (5297), 3903 states have internal predecessors, (5297), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 5374 transitions. [2025-03-09 06:10:09,599 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 5374 transitions. Word has length 240 [2025-03-09 06:10:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:09,599 INFO L471 AbstractCegarLoop]: Abstraction has 3971 states and 5374 transitions. [2025-03-09 06:10:09,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:10:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 5374 transitions. [2025-03-09 06:10:09,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-03-09 06:10:09,601 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:09,601 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:09,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-09 06:10:09,601 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 996294232, now seen corresponding path program 1 times [2025-03-09 06:10:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509836282] [2025-03-09 06:10:09,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:09,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-03-09 06:10:10,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-03-09 06:10:10,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:10,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 67 proven. 252 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-09 06:10:10,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:10:10,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509836282] [2025-03-09 06:10:10,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509836282] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:10:10,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109762264] [2025-03-09 06:10:10,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:10:10,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:10:10,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:10:10,991 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:10:10,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 06:10:11,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-03-09 06:10:12,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-03-09 06:10:12,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:10:12,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:10:12,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-09 06:10:12,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:10:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 249 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-09 06:10:12,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:10:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 67 proven. 252 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-09 06:10:13,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109762264] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:10:13,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:10:13,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 17] total 50 [2025-03-09 06:10:13,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209592249] [2025-03-09 06:10:13,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:10:13,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-03-09 06:10:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:10:13,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-03-09 06:10:13,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2025-03-09 06:10:13,746 INFO L87 Difference]: Start difference. First operand 3971 states and 5374 transitions. Second operand has 50 states, 50 states have (on average 4.88) internal successors, (244), 50 states have internal predecessors, (244), 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) [2025-03-09 06:10:23,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:10:23,457 INFO L93 Difference]: Finished difference Result 7967 states and 10848 transitions. [2025-03-09 06:10:23,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-09 06:10:23,457 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.88) internal successors, (244), 50 states have internal predecessors, (244), 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 240 [2025-03-09 06:10:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:10:23,463 INFO L225 Difference]: With dead ends: 7967 [2025-03-09 06:10:23,464 INFO L226 Difference]: Without dead ends: 4094 [2025-03-09 06:10:23,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1874, Invalid=6316, Unknown=0, NotChecked=0, Total=8190 [2025-03-09 06:10:23,469 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 72 mSDsluCounter, 9779 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 10247 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:10:23,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 10247 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-09 06:10:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2025-03-09 06:10:23,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 4029. [2025-03-09 06:10:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 3952 states have (on average 1.355263157894737) internal successors, (5356), 3961 states have internal predecessors, (5356), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2025-03-09 06:10:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5433 transitions. [2025-03-09 06:10:23,580 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5433 transitions. Word has length 240 [2025-03-09 06:10:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:10:23,580 INFO L471 AbstractCegarLoop]: Abstraction has 4029 states and 5433 transitions. [2025-03-09 06:10:23,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.88) internal successors, (244), 50 states have internal predecessors, (244), 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) [2025-03-09 06:10:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5433 transitions. [2025-03-09 06:10:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2025-03-09 06:10:23,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:10:23,581 INFO L218 NwaCegarLoop]: trace histogram [39, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:10:23,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-09 06:10:23,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-03-09 06:10:23,782 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:10:23,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:10:23,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1180451215, now seen corresponding path program 2 times [2025-03-09 06:10:23,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:10:23,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545718478] [2025-03-09 06:10:23,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:10:23,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:10:23,838 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 255 statements into 2 equivalence classes. [2025-03-09 06:10:24,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 255 of 255 statements. [2025-03-09 06:10:24,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:10:24,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat