./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.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_FNV_test6-2.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 e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:05:54,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:05:54,980 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:05:54,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:05:54,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:05:55,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:05:55,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:05:55,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:05:55,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:05:55,011 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:05:55,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:05:55,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:05:55,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:05:55,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:05:55,012 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:05:55,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:05:55,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:05:55,014 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:05:55,014 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:05:55,014 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:05:55,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:05:55,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:05:55,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:05:55,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:05:55,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:05:55,015 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 -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2025-03-09 06:05:55,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:05:55,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:05:55,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:05:55,262 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:05:55,262 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:05:55,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-09 06:05:56,480 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fcd27b2/69b5aab4b4bf4bc6b17cb2d054bb7f03/FLAG5fe95fd72 [2025-03-09 06:05:56,836 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:05:56,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-09 06:05:56,859 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fcd27b2/69b5aab4b4bf4bc6b17cb2d054bb7f03/FLAG5fe95fd72 [2025-03-09 06:05:56,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fcd27b2/69b5aab4b4bf4bc6b17cb2d054bb7f03 [2025-03-09 06:05:56,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:05:56,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:05:56,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:05:56,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:05:56,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:05:56,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:05:56" (1/1) ... [2025-03-09 06:05:56,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769e832c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:56, skipping insertion in model container [2025-03-09 06:05:56,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:05:56" (1/1) ... [2025-03-09 06:05:56,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:05:57,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:05:57,369 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:05:57,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:05:57,518 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:05:57,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57 WrapperNode [2025-03-09 06:05:57,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:05:57,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:05:57,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:05:57,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:05:57,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,636 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1605 [2025-03-09 06:05:57,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:05:57,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:05:57,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:05:57,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:05:57,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,764 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-03-09 06:05:57,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:05:57,836 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:05:57,836 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:05:57,836 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:05:57,837 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (1/1) ... [2025-03-09 06:05:57,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:05:57,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:05:57,865 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 06:05:57,867 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 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 06:05:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 06:05:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-09 06:05:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 06:05:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-09 06:05:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 06:05:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-09 06:05:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-09 06:05:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:05:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:05:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:05:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:05:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:05:57,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:05:58,060 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:05:58,061 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:05:58,106 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-09 06:05:59,124 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-09 06:05:59,124 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-09 06:05:59,124 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 06:05:59,220 INFO L? ?]: Removed 375 outVars from TransFormulas that were not future-live. [2025-03-09 06:05:59,220 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:05:59,263 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:05:59,264 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-09 06:05:59,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:05:59 BoogieIcfgContainer [2025-03-09 06:05:59,264 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:05:59,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:05:59,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:05:59,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:05:59,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:05:56" (1/3) ... [2025-03-09 06:05:59,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efda144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:05:59, skipping insertion in model container [2025-03-09 06:05:59,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:05:57" (2/3) ... [2025-03-09 06:05:59,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efda144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:05:59, skipping insertion in model container [2025-03-09 06:05:59,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:05:59" (3/3) ... [2025-03-09 06:05:59,273 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-2.i [2025-03-09 06:05:59,283 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:05:59,285 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test6-2.i that has 6 procedures, 494 locations, 1 initial locations, 39 loop locations, and 14 error locations. [2025-03-09 06:05:59,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:05:59,340 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;@4fdc492e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:05:59,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-09 06:05:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 455 states have (on average 1.6021978021978023) internal successors, (729), 472 states have internal predecessors, (729), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-09 06:05:59,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:05:59,350 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:05:59,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:05:59,351 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 06:05:59,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:05:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1369628540, now seen corresponding path program 1 times [2025-03-09 06:05:59,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:05:59,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465884957] [2025-03-09 06:05:59,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:05:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:05:59,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:05:59,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:05:59,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:05:59,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:05:59,513 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 06:05:59,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:05:59,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465884957] [2025-03-09 06:05:59,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465884957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:05:59,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:05:59,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:05:59,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322426646] [2025-03-09 06:05:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:05:59,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 06:05:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:05:59,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 06:05:59,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 06:05:59,539 INFO L87 Difference]: Start difference. First operand has 494 states, 455 states have (on average 1.6021978021978023) internal successors, (729), 472 states have internal predecessors, (729), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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 06:05:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:05:59,643 INFO L93 Difference]: Finished difference Result 981 states and 1543 transitions. [2025-03-09 06:05:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 06:05:59,645 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 06:05:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:05:59,654 INFO L225 Difference]: With dead ends: 981 [2025-03-09 06:05:59,654 INFO L226 Difference]: Without dead ends: 481 [2025-03-09 06:05:59,657 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 06:05:59,659 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:05:59,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 645 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:05:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2025-03-09 06:05:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2025-03-09 06:05:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 448 states have (on average 1.4441964285714286) internal successors, (647), 462 states have internal predecessors, (647), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:05:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 677 transitions. [2025-03-09 06:05:59,722 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 677 transitions. Word has length 8 [2025-03-09 06:05:59,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:05:59,723 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 677 transitions. [2025-03-09 06:05:59,723 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 06:05:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 677 transitions. [2025-03-09 06:05:59,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:05:59,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:05:59,724 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:05:59,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:05:59,724 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 06:05:59,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:05:59,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1369629501, now seen corresponding path program 1 times [2025-03-09 06:05:59,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:05:59,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233037256] [2025-03-09 06:05:59,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:05:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:05:59,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:05:59,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:05:59,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:05:59,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:05:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418165910] [2025-03-09 06:05:59,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:05:59,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:05:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:05:59,776 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 06:05:59,778 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 06:05:59,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:05:59,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:05:59,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:05:59,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:05:59,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:05:59,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:05:59,968 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 06:05:59,994 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 06:05:59,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:05:59,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:05:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233037256] [2025-03-09 06:05:59,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:05:59,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418165910] [2025-03-09 06:05:59,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418165910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:05:59,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:05:59,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:05:59,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497650551] [2025-03-09 06:05:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:05:59,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:05:59,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:00,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:00,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:00,000 INFO L87 Difference]: Start difference. First operand 481 states and 677 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 06:06:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:00,285 INFO L93 Difference]: Finished difference Result 928 states and 1321 transitions. [2025-03-09 06:06:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:06:00,287 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 06:06:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:00,292 INFO L225 Difference]: With dead ends: 928 [2025-03-09 06:06:00,292 INFO L226 Difference]: Without dead ends: 927 [2025-03-09 06:06:00,292 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 06:06:00,293 INFO L435 NwaCegarLoop]: 642 mSDtfsCounter, 609 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:00,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1880 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2025-03-09 06:06:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 487. [2025-03-09 06:06:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4405286343612336) internal successors, (654), 468 states have internal predecessors, (654), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:06:00,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 684 transitions. [2025-03-09 06:06:00,331 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 684 transitions. Word has length 8 [2025-03-09 06:06:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:00,332 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 684 transitions. [2025-03-09 06:06:00,332 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 06:06:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 684 transitions. [2025-03-09 06:06:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-09 06:06:00,333 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:00,333 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:06:00,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:06:00,533 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 06:06:00,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:00,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash -491157680, now seen corresponding path program 1 times [2025-03-09 06:06:00,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:00,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780739558] [2025-03-09 06:06:00,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:00,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:00,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:06:00,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:06:00,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:00,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:06:00,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505852330] [2025-03-09 06:06:00,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:00,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:00,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:00,583 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 06:06:00,585 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 06:06:00,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:06:00,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:06:00,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:00,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:00,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:06:00,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:00,739 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 06:06:00,756 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 06:06:00,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:00,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:00,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780739558] [2025-03-09 06:06:00,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:06:00,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505852330] [2025-03-09 06:06:00,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505852330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:00,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:00,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:06:00,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223772377] [2025-03-09 06:06:00,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:00,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:06:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:00,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:00,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:00,759 INFO L87 Difference]: Start difference. First operand 487 states and 684 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 06:06:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:01,007 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2025-03-09 06:06:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:06:01,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2025-03-09 06:06:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:01,012 INFO L225 Difference]: With dead ends: 927 [2025-03-09 06:06:01,012 INFO L226 Difference]: Without dead ends: 926 [2025-03-09 06:06:01,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 06:06:01,013 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 607 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:01,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1823 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2025-03-09 06:06:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 488. [2025-03-09 06:06:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 455 states have (on average 1.4395604395604396) internal successors, (655), 469 states have internal predecessors, (655), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:06:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 685 transitions. [2025-03-09 06:06:01,041 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 685 transitions. Word has length 9 [2025-03-09 06:06:01,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:01,041 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 685 transitions. [2025-03-09 06:06:01,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 06:06:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 685 transitions. [2025-03-09 06:06:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-09 06:06:01,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:01,042 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 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 06:06:01,049 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 06:06:01,243 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,SelfDestructingSolverStorable2 [2025-03-09 06:06:01,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:01,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash -668226412, now seen corresponding path program 1 times [2025-03-09 06:06:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:01,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492092197] [2025-03-09 06:06:01,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:01,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:06:01,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:06:01,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:01,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:06:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492092197] [2025-03-09 06:06:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492092197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:01,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:01,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:06:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718321044] [2025-03-09 06:06:01,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:01,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:06:01,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:01,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:01,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:01,474 INFO L87 Difference]: Start difference. First operand 488 states and 685 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 06:06:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:01,693 INFO L93 Difference]: Finished difference Result 1177 states and 1673 transitions. [2025-03-09 06:06:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:06:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2025-03-09 06:06:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:01,698 INFO L225 Difference]: With dead ends: 1177 [2025-03-09 06:06:01,699 INFO L226 Difference]: Without dead ends: 925 [2025-03-09 06:06:01,700 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 06:06:01,701 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 610 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:01,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1897 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2025-03-09 06:06:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 488. [2025-03-09 06:06:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 455 states have (on average 1.4373626373626374) internal successors, (654), 469 states have internal predecessors, (654), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:06:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 684 transitions. [2025-03-09 06:06:01,723 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 684 transitions. Word has length 34 [2025-03-09 06:06:01,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:01,724 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 684 transitions. [2025-03-09 06:06:01,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 06:06:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 684 transitions. [2025-03-09 06:06:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:06:01,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:01,728 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 06:06:01,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:06:01,728 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:01,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1151657349, now seen corresponding path program 1 times [2025-03-09 06:06:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:01,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613125268] [2025-03-09 06:06:01,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:01,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:06:01,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:06:01,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:01,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:06:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:01,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613125268] [2025-03-09 06:06:01,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613125268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:01,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:01,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:06:01,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136125991] [2025-03-09 06:06:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:01,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:06:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:01,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:01,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:01,956 INFO L87 Difference]: Start difference. First operand 488 states and 684 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 06:06:02,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:02,091 INFO L93 Difference]: Finished difference Result 925 states and 1293 transitions. [2025-03-09 06:06:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:06:02,091 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 06:06:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:02,093 INFO L225 Difference]: With dead ends: 925 [2025-03-09 06:06:02,093 INFO L226 Difference]: Without dead ends: 446 [2025-03-09 06:06:02,094 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 06:06:02,094 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 30 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:02,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1607 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:06:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-03-09 06:06:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2025-03-09 06:06:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 413 states have (on average 1.397094430992736) internal successors, (577), 427 states have internal predecessors, (577), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:06:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 607 transitions. [2025-03-09 06:06:02,107 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 607 transitions. Word has length 62 [2025-03-09 06:06:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:02,107 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 607 transitions. [2025-03-09 06:06:02,107 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 06:06:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 607 transitions. [2025-03-09 06:06:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:06:02,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:02,108 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 06:06:02,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:06:02,108 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:02,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1403853026, now seen corresponding path program 1 times [2025-03-09 06:06:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785680452] [2025-03-09 06:06:02,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:02,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:06:02,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:06:02,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:02,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:02,300 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 06:06:02,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:02,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785680452] [2025-03-09 06:06:02,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785680452] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:02,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:02,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:06:02,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753191626] [2025-03-09 06:06:02,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:02,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:06:02,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:02,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:02,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:02,302 INFO L87 Difference]: Start difference. First operand 446 states and 607 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 06:06:02,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:02,416 INFO L93 Difference]: Finished difference Result 814 states and 1117 transitions. [2025-03-09 06:06:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:06:02,417 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 06:06:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:02,421 INFO L225 Difference]: With dead ends: 814 [2025-03-09 06:06:02,421 INFO L226 Difference]: Without dead ends: 810 [2025-03-09 06:06:02,422 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 06:06:02,422 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 437 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:02,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1660 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:06:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2025-03-09 06:06:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 802. [2025-03-09 06:06:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 761 states have (on average 1.40473061760841) internal successors, (1069), 777 states have internal predecessors, (1069), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-09 06:06:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1113 transitions. [2025-03-09 06:06:02,441 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1113 transitions. Word has length 62 [2025-03-09 06:06:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:02,442 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1113 transitions. [2025-03-09 06:06:02,442 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 06:06:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1113 transitions. [2025-03-09 06:06:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 06:06:02,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:02,447 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 06:06:02,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:06:02,447 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:02,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash -516495134, now seen corresponding path program 1 times [2025-03-09 06:06:02,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:02,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175113479] [2025-03-09 06:06:02,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:02,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 06:06:02,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 06:06:02,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:02,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:02,589 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 06:06:02,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:02,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175113479] [2025-03-09 06:06:02,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175113479] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:02,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:02,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:06:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532792838] [2025-03-09 06:06:02,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:02,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:06:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:02,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:06:02,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:06:02,595 INFO L87 Difference]: Start difference. First operand 802 states and 1113 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 06:06:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:02,691 INFO L93 Difference]: Finished difference Result 1073 states and 1486 transitions. [2025-03-09 06:06:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:06:02,691 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 06:06:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:02,696 INFO L225 Difference]: With dead ends: 1073 [2025-03-09 06:06:02,696 INFO L226 Difference]: Without dead ends: 1071 [2025-03-09 06:06:02,697 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 06:06:02,699 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 465 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:02,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:06:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2025-03-09 06:06:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1061. [2025-03-09 06:06:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1007 states have (on average 1.41012909632572) internal successors, (1420), 1024 states have internal predecessors, (1420), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-09 06:06:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1484 transitions. [2025-03-09 06:06:02,730 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1484 transitions. Word has length 72 [2025-03-09 06:06:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:02,731 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1484 transitions. [2025-03-09 06:06:02,731 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 06:06:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1484 transitions. [2025-03-09 06:06:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-09 06:06:02,733 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:02,733 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 06:06:02,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:06:02,733 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:02,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:02,734 INFO L85 PathProgramCache]: Analyzing trace with hash -368563717, now seen corresponding path program 1 times [2025-03-09 06:06:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837467174] [2025-03-09 06:06:02,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:02,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:06:02,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:06:02,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:02,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:03,109 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 06:06:03,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:03,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837467174] [2025-03-09 06:06:03,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837467174] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:03,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41491689] [2025-03-09 06:06:03,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:03,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:03,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:03,113 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 06:06:03,115 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 06:06:03,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:06:03,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:06:03,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:03,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:03,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:06:03,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:03,376 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 06:06:03,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41491689] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:03,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:06:03,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-03-09 06:06:03,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626437249] [2025-03-09 06:06:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:03,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:06:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:03,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:06:03,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:06:03,378 INFO L87 Difference]: Start difference. First operand 1061 states and 1484 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 06:06:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:03,512 INFO L93 Difference]: Finished difference Result 1431 states and 1995 transitions. [2025-03-09 06:06:03,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:06:03,513 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 06:06:03,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:03,518 INFO L225 Difference]: With dead ends: 1431 [2025-03-09 06:06:03,518 INFO L226 Difference]: Without dead ends: 1430 [2025-03-09 06:06:03,518 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 06:06:03,519 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 554 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:03,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1581 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:06:03,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2025-03-09 06:06:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1381. [2025-03-09 06:06:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1320 states have (on average 1.4128787878787878) internal successors, (1865), 1339 states have internal predecessors, (1865), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2025-03-09 06:06:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1939 transitions. [2025-03-09 06:06:03,553 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1939 transitions. Word has length 81 [2025-03-09 06:06:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:03,553 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1939 transitions. [2025-03-09 06:06:03,554 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 06:06:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1939 transitions. [2025-03-09 06:06:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-09 06:06:03,554 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:03,554 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 06:06:03,562 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 06:06:03,755 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 06:06:03,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:03,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:03,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1459426639, now seen corresponding path program 1 times [2025-03-09 06:06:03,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:03,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347106119] [2025-03-09 06:06:03,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:03,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:03,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:06:03,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:06:03,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:03,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:04,045 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 06:06:04,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:04,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347106119] [2025-03-09 06:06:04,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347106119] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:04,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301663501] [2025-03-09 06:06:04,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:04,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:04,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:04,048 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 06:06:04,050 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 06:06:04,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:06:04,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:06:04,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:04,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:04,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 06:06:04,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:04,391 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 06:06:04,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:06:04,593 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 06:06:04,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301663501] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:06:04,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:06:04,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-03-09 06:06:04,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198208276] [2025-03-09 06:06:04,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:06:04,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:06:04,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:04,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:06:04,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:06:04,595 INFO L87 Difference]: Start difference. First operand 1381 states and 1939 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 06:06:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:05,755 INFO L93 Difference]: Finished difference Result 3730 states and 5221 transitions. [2025-03-09 06:06:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 06:06:05,755 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 06:06:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:05,768 INFO L225 Difference]: With dead ends: 3730 [2025-03-09 06:06:05,768 INFO L226 Difference]: Without dead ends: 3728 [2025-03-09 06:06:05,770 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 06:06:05,771 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 5253 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:05,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 6404 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 06:06:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2025-03-09 06:06:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 2763. [2025-03-09 06:06:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2643 states have (on average 1.3946273174423005) internal successors, (3686), 2664 states have internal predecessors, (3686), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2025-03-09 06:06:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3875 transitions. [2025-03-09 06:06:05,853 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3875 transitions. Word has length 82 [2025-03-09 06:06:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:05,854 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3875 transitions. [2025-03-09 06:06:05,854 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 06:06:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3875 transitions. [2025-03-09 06:06:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-09 06:06:05,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:05,855 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 06:06:05,863 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 06:06:06,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:06,059 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:06,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1021200483, now seen corresponding path program 1 times [2025-03-09 06:06:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602419833] [2025-03-09 06:06:06,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:06,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:06,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-09 06:06:06,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-09 06:06:06,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:06,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:06,158 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 06:06:06,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:06,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602419833] [2025-03-09 06:06:06,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602419833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:06,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:06,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:06:06,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421793409] [2025-03-09 06:06:06,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:06,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:06:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:06,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:06:06,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:06:06,160 INFO L87 Difference]: Start difference. First operand 2763 states and 3875 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 06:06:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:06,389 INFO L93 Difference]: Finished difference Result 5779 states and 8147 transitions. [2025-03-09 06:06:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:06:06,389 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 06:06:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:06,401 INFO L225 Difference]: With dead ends: 5779 [2025-03-09 06:06:06,402 INFO L226 Difference]: Without dead ends: 3025 [2025-03-09 06:06:06,407 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 06:06:06,407 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 341 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:06,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1291 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2025-03-09 06:06:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2914. [2025-03-09 06:06:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2800 states have (on average 1.4082142857142856) internal successors, (3943), 2820 states have internal predecessors, (3943), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2025-03-09 06:06:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4125 transitions. [2025-03-09 06:06:06,489 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4125 transitions. Word has length 80 [2025-03-09 06:06:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:06,489 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4125 transitions. [2025-03-09 06:06:06,490 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 06:06:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4125 transitions. [2025-03-09 06:06:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-09 06:06:06,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:06,491 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 06:06:06,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:06:06,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:06,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1189884257, now seen corresponding path program 1 times [2025-03-09 06:06:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:06,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587661541] [2025-03-09 06:06:06,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:06,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:06,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:06:06,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:06:06,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:06,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:06,755 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 06:06:06,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:06,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587661541] [2025-03-09 06:06:06,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587661541] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:06,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989887988] [2025-03-09 06:06:06,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:06,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:06,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:06,758 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 06:06:06,759 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 06:06:06,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:06:06,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:06:06,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:06,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:06,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:06:07,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:07,116 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 06:06:07,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:06:07,280 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 06:06:07,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989887988] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:07,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-09 06:06:07,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-03-09 06:06:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743511756] [2025-03-09 06:06:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:07,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:06:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:07,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:06:07,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:06:07,281 INFO L87 Difference]: Start difference. First operand 2914 states and 4125 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 06:06:07,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:07,426 INFO L93 Difference]: Finished difference Result 2914 states and 4125 transitions. [2025-03-09 06:06:07,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:06:07,427 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 06:06:07,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:07,437 INFO L225 Difference]: With dead ends: 2914 [2025-03-09 06:06:07,437 INFO L226 Difference]: Without dead ends: 2913 [2025-03-09 06:06:07,439 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 06:06:07,439 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:07,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 555 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:06:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2025-03-09 06:06:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2913. [2025-03-09 06:06:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2800 states have (on average 1.4064285714285714) internal successors, (3938), 2819 states have internal predecessors, (3938), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2025-03-09 06:06:07,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4120 transitions. [2025-03-09 06:06:07,513 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4120 transitions. Word has length 91 [2025-03-09 06:06:07,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:07,514 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4120 transitions. [2025-03-09 06:06:07,514 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 06:06:07,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4120 transitions. [2025-03-09 06:06:07,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 06:06:07,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:07,515 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 06:06:07,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:06:07,715 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 06:06:07,716 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:07,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1768293694, now seen corresponding path program 1 times [2025-03-09 06:06:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:07,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071721357] [2025-03-09 06:06:07,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:07,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:07,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:06:07,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:06:07,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:07,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:07,948 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 06:06:07,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:07,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071721357] [2025-03-09 06:06:07,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071721357] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:07,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859018973] [2025-03-09 06:06:07,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:07,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:07,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:07,951 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 06:06:07,952 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 06:06:08,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:06:08,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:06:08,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:08,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:08,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:06:08,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:08,296 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 06:06:08,296 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:06:08,439 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 06:06:08,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859018973] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:06:08,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:06:08,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-03-09 06:06:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682287282] [2025-03-09 06:06:08,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:06:08,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 06:06:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:08,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 06:06:08,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:06:08,441 INFO L87 Difference]: Start difference. First operand 2913 states and 4120 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 06:06:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:09,062 INFO L93 Difference]: Finished difference Result 5845 states and 8268 transitions. [2025-03-09 06:06:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:06:09,063 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 06:06:09,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:09,082 INFO L225 Difference]: With dead ends: 5845 [2025-03-09 06:06:09,082 INFO L226 Difference]: Without dead ends: 5844 [2025-03-09 06:06:09,086 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 06:06:09,087 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 1559 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:09,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 3318 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:06:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2025-03-09 06:06:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5411. [2025-03-09 06:06:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5189 states have (on average 1.406051262285604) internal successors, (7296), 5213 states have internal predecessors, (7296), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2025-03-09 06:06:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 7652 transitions. [2025-03-09 06:06:09,247 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 7652 transitions. Word has length 92 [2025-03-09 06:06:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:09,248 INFO L471 AbstractCegarLoop]: Abstraction has 5411 states and 7652 transitions. [2025-03-09 06:06:09,248 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 06:06:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 7652 transitions. [2025-03-09 06:06:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 06:06:09,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:09,249 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 06:06:09,258 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 06:06:09,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:09,450 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:09,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:09,451 INFO L85 PathProgramCache]: Analyzing trace with hash -69961688, now seen corresponding path program 1 times [2025-03-09 06:06:09,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:09,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750591521] [2025-03-09 06:06:09,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:09,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-09 06:06:09,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 06:06:09,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:09,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:09,719 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 06:06:09,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:09,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750591521] [2025-03-09 06:06:09,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750591521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:09,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:06:09,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:06:09,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926784761] [2025-03-09 06:06:09,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:09,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:06:09,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:09,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:06:09,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:06:09,722 INFO L87 Difference]: Start difference. First operand 5411 states and 7652 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 06:06:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:09,970 INFO L93 Difference]: Finished difference Result 7643 states and 10875 transitions. [2025-03-09 06:06:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:06:09,970 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 06:06:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:09,997 INFO L225 Difference]: With dead ends: 7643 [2025-03-09 06:06:09,998 INFO L226 Difference]: Without dead ends: 7641 [2025-03-09 06:06:10,005 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 06:06:10,005 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 441 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:10,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1593 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:10,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2025-03-09 06:06:10,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 5577. [2025-03-09 06:06:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5577 states, 5346 states have (on average 1.401421623643846) internal successors, (7492), 5371 states have internal predecessors, (7492), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2025-03-09 06:06:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5577 states to 5577 states and 7869 transitions. [2025-03-09 06:06:10,165 INFO L78 Accepts]: Start accepts. Automaton has 5577 states and 7869 transitions. Word has length 118 [2025-03-09 06:06:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:10,166 INFO L471 AbstractCegarLoop]: Abstraction has 5577 states and 7869 transitions. [2025-03-09 06:06:10,166 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 06:06:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5577 states and 7869 transitions. [2025-03-09 06:06:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-09 06:06:10,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:10,168 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 06:06:10,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:06:10,168 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 06:06:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1879760466, now seen corresponding path program 1 times [2025-03-09 06:06:10,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599895047] [2025-03-09 06:06:10,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:10,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:06:10,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:06:10,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:10,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:10,498 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 06:06:10,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599895047] [2025-03-09 06:06:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599895047] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709248490] [2025-03-09 06:06:10,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:10,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:10,500 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 06:06:10,502 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 06:06:10,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:06:10,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:06:10,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:10,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:10,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 06:06:10,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:10,880 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 06:06:10,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:10,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709248490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:10,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:06:10,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-03-09 06:06:10,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870636084] [2025-03-09 06:06:10,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:10,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:06:10,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:10,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:06:10,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:06:10,881 INFO L87 Difference]: Start difference. First operand 5577 states and 7869 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 06:06:11,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:11,167 INFO L93 Difference]: Finished difference Result 10632 states and 15058 transitions. [2025-03-09 06:06:11,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:06:11,168 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 06:06:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:11,181 INFO L225 Difference]: With dead ends: 10632 [2025-03-09 06:06:11,181 INFO L226 Difference]: Without dead ends: 5371 [2025-03-09 06:06:11,190 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 06:06:11,190 INFO L435 NwaCegarLoop]: 535 mSDtfsCounter, 85 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:11,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2594 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2025-03-09 06:06:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2025-03-09 06:06:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5157 states have (on average 1.4058561178980027) internal successors, (7250), 5180 states have internal predecessors, (7250), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2025-03-09 06:06:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7599 transitions. [2025-03-09 06:06:11,327 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7599 transitions. Word has length 125 [2025-03-09 06:06:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:11,327 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7599 transitions. [2025-03-09 06:06:11,328 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 06:06:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7599 transitions. [2025-03-09 06:06:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-09 06:06:11,329 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:11,329 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 06:06:11,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 06:06:11,529 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 06:06:11,530 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 06:06:11,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1995254625, now seen corresponding path program 1 times [2025-03-09 06:06:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:11,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538059194] [2025-03-09 06:06:11,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:11,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:11,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:06:11,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:06:11,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:11,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:11,939 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 06:06:11,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538059194] [2025-03-09 06:06:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538059194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241886975] [2025-03-09 06:06:11,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:11,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:11,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:11,942 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 06:06:11,943 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 06:06:12,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:06:12,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:06:12,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:12,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:12,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 06:06:12,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:12,281 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 06:06:12,296 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 06:06:12,312 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 06:06:12,834 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 06:06:12,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:12,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241886975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:12,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:06:12,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-03-09 06:06:12,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065062764] [2025-03-09 06:06:12,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:12,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 06:06:12,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:12,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 06:06:12,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-03-09 06:06:12,836 INFO L87 Difference]: Start difference. First operand 5371 states and 7599 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 06:06:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:13,871 INFO L93 Difference]: Finished difference Result 12775 states and 18156 transitions. [2025-03-09 06:06:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:06:13,872 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 06:06:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:13,888 INFO L225 Difference]: With dead ends: 12775 [2025-03-09 06:06:13,888 INFO L226 Difference]: Without dead ends: 7449 [2025-03-09 06:06:13,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2025-03-09 06:06:13,895 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 649 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:13,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2920 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 06:06:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2025-03-09 06:06:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 5371. [2025-03-09 06:06:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5157 states have (on average 1.4056622067093272) internal successors, (7249), 5180 states have internal predecessors, (7249), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2025-03-09 06:06:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7598 transitions. [2025-03-09 06:06:14,013 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7598 transitions. Word has length 130 [2025-03-09 06:06:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:14,013 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7598 transitions. [2025-03-09 06:06:14,013 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 06:06:14,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7598 transitions. [2025-03-09 06:06:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-09 06:06:14,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:14,015 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 06:06:14,024 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 06:06:14,215 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 06:06:14,216 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 06:06:14,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1587166958, now seen corresponding path program 1 times [2025-03-09 06:06:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448942809] [2025-03-09 06:06:14,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:14,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:06:14,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:06:14,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:14,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:14,567 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 06:06:14,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:14,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448942809] [2025-03-09 06:06:14,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448942809] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:14,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327630983] [2025-03-09 06:06:14,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:14,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:14,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:14,570 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 06:06:14,572 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 06:06:14,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:06:14,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:06:14,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:14,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:14,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 06:06:14,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:14,986 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 06:06:14,986 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327630983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:14,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:06:14,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-03-09 06:06:14,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987176066] [2025-03-09 06:06:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:14,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 06:06:14,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:14,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 06:06:14,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:06:14,988 INFO L87 Difference]: Start difference. First operand 5371 states and 7598 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 06:06:15,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:15,247 INFO L93 Difference]: Finished difference Result 8203 states and 11569 transitions. [2025-03-09 06:06:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:06:15,247 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 06:06:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:15,255 INFO L225 Difference]: With dead ends: 8203 [2025-03-09 06:06:15,255 INFO L226 Difference]: Without dead ends: 2915 [2025-03-09 06:06:15,262 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 06:06:15,263 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 13 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:15,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4338 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:06:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2025-03-09 06:06:15,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2913. [2025-03-09 06:06:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2775 states have (on average 1.3931531531531531) internal successors, (3866), 2791 states have internal predecessors, (3866), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2025-03-09 06:06:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4049 transitions. [2025-03-09 06:06:15,327 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4049 transitions. Word has length 131 [2025-03-09 06:06:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:15,327 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4049 transitions. [2025-03-09 06:06:15,327 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 06:06:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4049 transitions. [2025-03-09 06:06:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-09 06:06:15,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:15,328 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 06:06:15,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 06:06:15,528 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 06:06:15,529 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 06:06:15,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1796911606, now seen corresponding path program 1 times [2025-03-09 06:06:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:15,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280149943] [2025-03-09 06:06:15,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:15,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:15,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:06:15,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:06:15,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:15,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:19,815 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 06:06:19,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:19,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280149943] [2025-03-09 06:06:19,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280149943] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:19,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510830381] [2025-03-09 06:06:19,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:19,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:19,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:19,819 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 06:06:19,820 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 06:06:20,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:06:20,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:06:20,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:20,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:20,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 06:06:20,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:20,365 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 06:06:20,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:06:20,537 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 06:06:20,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510830381] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:06:20,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:06:20,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 10, 6] total 41 [2025-03-09 06:06:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024687330] [2025-03-09 06:06:20,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:06:20,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-09 06:06:20,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:20,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-09 06:06:20,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1526, Unknown=0, NotChecked=0, Total=1640 [2025-03-09 06:06:20,539 INFO L87 Difference]: Start difference. First operand 2913 states and 4049 transitions. Second operand has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-09 06:06:24,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:24,816 INFO L93 Difference]: Finished difference Result 6778 states and 9484 transitions. [2025-03-09 06:06:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-09 06:06:24,816 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 133 [2025-03-09 06:06:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:24,828 INFO L225 Difference]: With dead ends: 6778 [2025-03-09 06:06:24,829 INFO L226 Difference]: Without dead ends: 3948 [2025-03-09 06:06:24,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=521, Invalid=5799, Unknown=0, NotChecked=0, Total=6320 [2025-03-09 06:06:24,835 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 564 mSDsluCounter, 13850 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 14336 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:24,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 14336 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-09 06:06:24,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2025-03-09 06:06:24,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 2995. [2025-03-09 06:06:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2853 states have (on average 1.3901156677181914) internal successors, (3966), 2866 states have internal predecessors, (3966), 86 states have call successors, (86), 46 states have call predecessors, (86), 43 states have return successors, (99), 82 states have call predecessors, (99), 86 states have call successors, (99) [2025-03-09 06:06:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 4151 transitions. [2025-03-09 06:06:24,984 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 4151 transitions. Word has length 133 [2025-03-09 06:06:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:24,985 INFO L471 AbstractCegarLoop]: Abstraction has 2995 states and 4151 transitions. [2025-03-09 06:06:24,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-09 06:06:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 4151 transitions. [2025-03-09 06:06:24,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-09 06:06:24,986 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:24,986 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] [2025-03-09 06:06:24,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 06:06:25,186 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 06:06:25,187 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 06:06:25,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash -276624723, now seen corresponding path program 1 times [2025-03-09 06:06:25,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:25,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662908378] [2025-03-09 06:06:25,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:25,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:25,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-09 06:06:25,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-09 06:06:25,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:25,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:25,644 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 06:06:25,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:25,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662908378] [2025-03-09 06:06:25,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662908378] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:25,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204655482] [2025-03-09 06:06:25,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:25,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:25,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:25,650 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 06:06:25,652 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 06:06:25,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-09 06:06:25,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-09 06:06:25,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:25,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:25,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 06:06:25,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-09 06:06:26,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:06:26,480 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 06:06:26,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204655482] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:06:26,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:06:26,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-03-09 06:06:26,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566355986] [2025-03-09 06:06:26,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:06:26,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-09 06:06:26,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:26,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-09 06:06:26,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-03-09 06:06:26,483 INFO L87 Difference]: Start difference. First operand 2995 states and 4151 transitions. Second operand has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 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 06:06:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:27,386 INFO L93 Difference]: Finished difference Result 5956 states and 8294 transitions. [2025-03-09 06:06:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-09 06:06:27,386 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 137 [2025-03-09 06:06:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:27,394 INFO L225 Difference]: With dead ends: 5956 [2025-03-09 06:06:27,395 INFO L226 Difference]: Without dead ends: 3032 [2025-03-09 06:06:27,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 258 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 06:06:27,399 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 51 mSDsluCounter, 5863 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:27,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 6399 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:06:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2025-03-09 06:06:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2998. [2025-03-09 06:06:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2859 states have (on average 1.3882476390346274) internal successors, (3969), 2872 states have internal predecessors, (3969), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2025-03-09 06:06:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4148 transitions. [2025-03-09 06:06:27,497 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4148 transitions. Word has length 137 [2025-03-09 06:06:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:27,497 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4148 transitions. [2025-03-09 06:06:27,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 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 06:06:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4148 transitions. [2025-03-09 06:06:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-09 06:06:27,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:27,500 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:06:27,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-09 06:06:27,704 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 06:06:27,704 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:06:27,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:27,704 INFO L85 PathProgramCache]: Analyzing trace with hash 58161071, now seen corresponding path program 2 times [2025-03-09 06:06:27,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335779541] [2025-03-09 06:06:27,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:06:27,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:27,742 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-09 06:06:27,853 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 146 of 146 statements. [2025-03-09 06:06:27,853 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:06:27,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-09 06:06:28,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:28,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335779541] [2025-03-09 06:06:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335779541] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:28,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694046327] [2025-03-09 06:06:28,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:06:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:28,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:28,413 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 06:06:28,414 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 06:06:28,677 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-09 06:06:28,688 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 146 statements. [2025-03-09 06:06:28,688 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:06:28,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:28,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:06:28,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:06:28,697 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 06:06:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-03-09 06:06:28,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:06:28,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694046327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:06:28,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:06:28,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15] total 16 [2025-03-09 06:06:28,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779356528] [2025-03-09 06:06:28,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:06:28,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:06:28,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:06:28,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:06:28,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-09 06:06:28,710 INFO L87 Difference]: Start difference. First operand 2998 states and 4148 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:06:28,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:06:28,797 INFO L93 Difference]: Finished difference Result 2998 states and 4148 transitions. [2025-03-09 06:06:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:06:28,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 146 [2025-03-09 06:06:28,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:06:28,804 INFO L225 Difference]: With dead ends: 2998 [2025-03-09 06:06:28,805 INFO L226 Difference]: Without dead ends: 2997 [2025-03-09 06:06:28,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-09 06:06:28,806 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 06:06:28,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 06:06:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-03-09 06:06:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2997. [2025-03-09 06:06:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2859 states have (on average 1.3861490031479538) internal successors, (3963), 2871 states have internal predecessors, (3963), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2025-03-09 06:06:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 4142 transitions. [2025-03-09 06:06:28,904 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 4142 transitions. Word has length 146 [2025-03-09 06:06:28,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:06:28,906 INFO L471 AbstractCegarLoop]: Abstraction has 2997 states and 4142 transitions. [2025-03-09 06:06:28,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:06:28,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 4142 transitions. [2025-03-09 06:06:28,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-09 06:06:28,907 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:06:28,907 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] [2025-03-09 06:06:28,915 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 06:06:29,107 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 06:06:29,108 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 06:06:29,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:06:29,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1802993950, now seen corresponding path program 1 times [2025-03-09 06:06:29,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:06:29,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811553179] [2025-03-09 06:06:29,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:29,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:06:29,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-09 06:06:29,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-09 06:06:29,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:29,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:29,823 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 06:06:29,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:06:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811553179] [2025-03-09 06:06:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811553179] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:06:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619596310] [2025-03-09 06:06:29,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:06:29,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:06:29,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:06:29,826 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 06:06:29,827 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 06:06:30,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-09 06:06:30,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-09 06:06:30,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:06:30,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:06:30,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-09 06:06:30,413 INFO L279 TraceCheckSpWp]: Computing forward predicates...