./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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_OAT_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 bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 14:58:33,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:58:33,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 14:58:33,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:58:33,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:58:33,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:58:33,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:58:33,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:58:33,169 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:58:33,170 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:58:33,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:58:33,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:58:33,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:58:33,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:58:33,171 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:58:33,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:58:33,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:58:33,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:58:33,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:58:33,173 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 -> bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da [2025-03-04 14:58:33,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:58:33,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:58:33,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:58:33,402 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:58:33,402 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:58:33,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2025-03-04 14:58:34,597 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039692c5d/3191ec5e9e784c98921f9f6ddc9af9c5/FLAGd6822e936 [2025-03-04 14:58:34,949 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:58:34,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2025-03-04 14:58:34,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039692c5d/3191ec5e9e784c98921f9f6ddc9af9c5/FLAGd6822e936 [2025-03-04 14:58:35,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039692c5d/3191ec5e9e784c98921f9f6ddc9af9c5 [2025-03-04 14:58:35,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:58:35,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:58:35,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:58:35,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:58:35,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:58:35,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f9eb96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35, skipping insertion in model container [2025-03-04 14:58:35,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:58:35,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:58:35,714 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:58:35,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:58:35,850 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:58:35,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35 WrapperNode [2025-03-04 14:58:35,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:58:35,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:58:35,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:58:35,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:58:35,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,925 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1605 [2025-03-04 14:58:35,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:58:35,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:58:35,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:58:35,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:58:35,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:35,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,040 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]. [2025-03-04 14:58:36,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,073 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:58:36,097 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:58:36,098 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:58:36,098 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:58:36,098 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (1/1) ... [2025-03-04 14:58:36,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:58:36,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:36,125 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) [2025-03-04 14:58:36,127 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 [2025-03-04 14:58:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-04 14:58:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-04 14:58:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 14:58:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 14:58:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 14:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 14:58:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 14:58:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:58:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:58:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-04 14:58:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-04 14:58:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-04 14:58:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 14:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 14:58:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:58:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:58:36,335 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:58:36,337 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:58:36,386 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-04 14:58:37,361 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-04 14:58:37,362 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-04 14:58:37,362 INFO L1325 $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; [2025-03-04 14:58:37,445 INFO L? ?]: Removed 375 outVars from TransFormulas that were not future-live. [2025-03-04 14:58:37,445 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:58:37,496 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:58:37,500 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-04 14:58:37,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:58:37 BoogieIcfgContainer [2025-03-04 14:58:37,501 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:58:37,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:58:37,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:58:37,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:58:37,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:58:35" (1/3) ... [2025-03-04 14:58:37,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ce07e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:58:37, skipping insertion in model container [2025-03-04 14:58:37,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:58:35" (2/3) ... [2025-03-04 14:58:37,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ce07e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:58:37, skipping insertion in model container [2025-03-04 14:58:37,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:58:37" (3/3) ... [2025-03-04 14:58:37,510 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-2.i [2025-03-04 14:58:37,522 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:58:37,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test6-2.i that has 6 procedures, 494 locations, 1 initial locations, 39 loop locations, and 14 error locations. [2025-03-04 14:58:37,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:58:37,587 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;@2872b0ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:58:37,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-04 14:58:37,593 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) [2025-03-04 14:58:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 14:58:37,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:37,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:58:37,600 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)] === [2025-03-04 14:58:37,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:37,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1369628540, now seen corresponding path program 1 times [2025-03-04 14:58:37,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:37,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389754258] [2025-03-04 14:58:37,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:37,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:37,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:58:37,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:58:37,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:37,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:37,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389754258] [2025-03-04 14:58:37,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389754258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:37,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:37,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:58:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962897573] [2025-03-04 14:58:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:37,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 14:58:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:37,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 14:58:37,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 14:58:37,790 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) [2025-03-04 14:58:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:37,916 INFO L93 Difference]: Finished difference Result 981 states and 1543 transitions. [2025-03-04 14:58:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 14:58:37,918 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 [2025-03-04 14:58:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:37,928 INFO L225 Difference]: With dead ends: 981 [2025-03-04 14:58:37,928 INFO L226 Difference]: Without dead ends: 481 [2025-03-04 14:58:37,934 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 [2025-03-04 14:58:37,936 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2025-03-04 14:58:37,938 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] [2025-03-04 14:58:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2025-03-04 14:58:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2025-03-04 14:58:37,993 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) [2025-03-04 14:58:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 677 transitions. [2025-03-04 14:58:38,002 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 677 transitions. Word has length 8 [2025-03-04 14:58:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:38,002 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 677 transitions. [2025-03-04 14:58:38,002 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) [2025-03-04 14:58:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 677 transitions. [2025-03-04 14:58:38,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 14:58:38,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:38,003 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:58:38,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 14:58:38,003 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)] === [2025-03-04 14:58:38,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:38,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1369629501, now seen corresponding path program 1 times [2025-03-04 14:58:38,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:38,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985021530] [2025-03-04 14:58:38,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:38,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:38,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:58:38,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:58:38,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:38,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 14:58:38,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316621893] [2025-03-04 14:58:38,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:38,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:38,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:38,040 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) [2025-03-04 14:58:38,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 14:58:38,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:58:38,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:58:38,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:38,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:38,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 14:58:38,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:38,226 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 [2025-03-04 14:58:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:38,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:38,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:38,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985021530] [2025-03-04 14:58:38,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 14:58:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316621893] [2025-03-04 14:58:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316621893] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:38,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:58:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146421457] [2025-03-04 14:58:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:38,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:38,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:38,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:38,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:38,263 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) [2025-03-04 14:58:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:38,523 INFO L93 Difference]: Finished difference Result 928 states and 1321 transitions. [2025-03-04 14:58:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:58:38,524 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 [2025-03-04 14:58:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:38,529 INFO L225 Difference]: With dead ends: 928 [2025-03-04 14:58:38,530 INFO L226 Difference]: Without dead ends: 927 [2025-03-04 14:58:38,530 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 [2025-03-04 14:58:38,531 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 [2025-03-04 14:58:38,531 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] [2025-03-04 14:58:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2025-03-04 14:58:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 487. [2025-03-04 14:58:38,567 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) [2025-03-04 14:58:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 684 transitions. [2025-03-04 14:58:38,571 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 684 transitions. Word has length 8 [2025-03-04 14:58:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:38,571 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 684 transitions. [2025-03-04 14:58:38,571 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) [2025-03-04 14:58:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 684 transitions. [2025-03-04 14:58:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 14:58:38,572 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:38,572 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:58:38,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 14:58:38,776 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 [2025-03-04 14:58:38,776 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)] === [2025-03-04 14:58:38,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash -491157680, now seen corresponding path program 1 times [2025-03-04 14:58:38,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:38,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157259433] [2025-03-04 14:58:38,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:38,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:38,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 14:58:38,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 14:58:38,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:38,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 14:58:38,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190014854] [2025-03-04 14:58:38,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:38,809 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) [2025-03-04 14:58:38,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 14:58:38,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 14:58:38,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 14:58:38,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:38,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:38,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 14:58:38,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:38,959 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 [2025-03-04 14:58:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:38,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:38,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:38,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157259433] [2025-03-04 14:58:38,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 14:58:38,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190014854] [2025-03-04 14:58:38,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190014854] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:38,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:38,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:58:38,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553197507] [2025-03-04 14:58:38,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:38,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:38,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:38,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:38,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:38,978 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) [2025-03-04 14:58:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:39,226 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2025-03-04 14:58:39,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:58:39,227 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 [2025-03-04 14:58:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:39,230 INFO L225 Difference]: With dead ends: 927 [2025-03-04 14:58:39,230 INFO L226 Difference]: Without dead ends: 926 [2025-03-04 14:58:39,231 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 [2025-03-04 14:58:39,231 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 [2025-03-04 14:58:39,231 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] [2025-03-04 14:58:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2025-03-04 14:58:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 488. [2025-03-04 14:58:39,245 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) [2025-03-04 14:58:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 685 transitions. [2025-03-04 14:58:39,247 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 685 transitions. Word has length 9 [2025-03-04 14:58:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:39,247 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 685 transitions. [2025-03-04 14:58:39,247 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) [2025-03-04 14:58:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 685 transitions. [2025-03-04 14:58:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 14:58:39,248 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:39,248 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] [2025-03-04 14:58:39,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 14:58:39,453 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 [2025-03-04 14:58:39,453 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)] === [2025-03-04 14:58:39,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash -668226412, now seen corresponding path program 1 times [2025-03-04 14:58:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:39,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140852715] [2025-03-04 14:58:39,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:39,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 14:58:39,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 14:58:39,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:39,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 14:58:39,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:39,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140852715] [2025-03-04 14:58:39,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140852715] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:39,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:39,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 14:58:39,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423453978] [2025-03-04 14:58:39,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:39,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:39,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:39,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:39,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:39,653 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) [2025-03-04 14:58:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:39,860 INFO L93 Difference]: Finished difference Result 1177 states and 1673 transitions. [2025-03-04 14:58:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:58:39,860 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 [2025-03-04 14:58:39,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:39,864 INFO L225 Difference]: With dead ends: 1177 [2025-03-04 14:58:39,864 INFO L226 Difference]: Without dead ends: 925 [2025-03-04 14:58:39,865 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 [2025-03-04 14:58:39,866 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 [2025-03-04 14:58:39,866 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] [2025-03-04 14:58:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2025-03-04 14:58:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 488. [2025-03-04 14:58:39,885 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) [2025-03-04 14:58:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 684 transitions. [2025-03-04 14:58:39,888 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 684 transitions. Word has length 34 [2025-03-04 14:58:39,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:39,888 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 684 transitions. [2025-03-04 14:58:39,889 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) [2025-03-04 14:58:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 684 transitions. [2025-03-04 14:58:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-04 14:58:39,891 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:39,892 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] [2025-03-04 14:58:39,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 14:58:39,892 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)] === [2025-03-04 14:58:39,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1151657349, now seen corresponding path program 1 times [2025-03-04 14:58:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:39,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051920242] [2025-03-04 14:58:39,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:39,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:39,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 14:58:39,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 14:58:39,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:39,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:40,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:40,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051920242] [2025-03-04 14:58:40,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051920242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:40,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:40,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 14:58:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333715996] [2025-03-04 14:58:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:40,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:40,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:40,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:40,122 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) [2025-03-04 14:58:40,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:40,237 INFO L93 Difference]: Finished difference Result 925 states and 1293 transitions. [2025-03-04 14:58:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 14:58:40,237 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 [2025-03-04 14:58:40,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:40,239 INFO L225 Difference]: With dead ends: 925 [2025-03-04 14:58:40,239 INFO L226 Difference]: Without dead ends: 446 [2025-03-04 14:58:40,240 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 [2025-03-04 14:58:40,240 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 [2025-03-04 14:58:40,241 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] [2025-03-04 14:58:40,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-03-04 14:58:40,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2025-03-04 14:58:40,247 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) [2025-03-04 14:58:40,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 607 transitions. [2025-03-04 14:58:40,249 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 607 transitions. Word has length 62 [2025-03-04 14:58:40,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:40,249 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 607 transitions. [2025-03-04 14:58:40,249 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) [2025-03-04 14:58:40,249 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 607 transitions. [2025-03-04 14:58:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-04 14:58:40,250 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:40,250 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] [2025-03-04 14:58:40,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 14:58:40,250 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)] === [2025-03-04 14:58:40,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1403853026, now seen corresponding path program 1 times [2025-03-04 14:58:40,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:40,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720846621] [2025-03-04 14:58:40,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:40,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:40,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 14:58:40,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 14:58:40,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:40,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:40,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:40,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720846621] [2025-03-04 14:58:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720846621] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:40,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:58:40,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412193612] [2025-03-04 14:58:40,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:40,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:40,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:40,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:40,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:40,449 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) [2025-03-04 14:58:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:40,563 INFO L93 Difference]: Finished difference Result 814 states and 1117 transitions. [2025-03-04 14:58:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:58:40,563 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 [2025-03-04 14:58:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:40,568 INFO L225 Difference]: With dead ends: 814 [2025-03-04 14:58:40,568 INFO L226 Difference]: Without dead ends: 810 [2025-03-04 14:58:40,569 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 [2025-03-04 14:58:40,570 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 [2025-03-04 14:58:40,571 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] [2025-03-04 14:58:40,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2025-03-04 14:58:40,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 802. [2025-03-04 14:58:40,590 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) [2025-03-04 14:58:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1113 transitions. [2025-03-04 14:58:40,594 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1113 transitions. Word has length 62 [2025-03-04 14:58:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:40,594 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1113 transitions. [2025-03-04 14:58:40,594 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) [2025-03-04 14:58:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1113 transitions. [2025-03-04 14:58:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 14:58:40,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:40,596 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] [2025-03-04 14:58:40,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 14:58:40,596 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)] === [2025-03-04 14:58:40,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:40,596 INFO L85 PathProgramCache]: Analyzing trace with hash -516495134, now seen corresponding path program 1 times [2025-03-04 14:58:40,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:40,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673210774] [2025-03-04 14:58:40,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:40,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:40,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 14:58:40,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 14:58:40,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:40,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:40,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:40,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673210774] [2025-03-04 14:58:40,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673210774] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:40,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:40,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:58:40,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203045993] [2025-03-04 14:58:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:58:40,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:40,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:58:40,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:58:40,731 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) [2025-03-04 14:58:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:40,818 INFO L93 Difference]: Finished difference Result 1073 states and 1486 transitions. [2025-03-04 14:58:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:58:40,819 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 [2025-03-04 14:58:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:40,823 INFO L225 Difference]: With dead ends: 1073 [2025-03-04 14:58:40,823 INFO L226 Difference]: Without dead ends: 1071 [2025-03-04 14:58:40,823 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 [2025-03-04 14:58:40,823 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 [2025-03-04 14:58:40,824 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] [2025-03-04 14:58:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2025-03-04 14:58:40,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1061. [2025-03-04 14:58:40,845 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) [2025-03-04 14:58:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1484 transitions. [2025-03-04 14:58:40,849 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1484 transitions. Word has length 72 [2025-03-04 14:58:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:40,850 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1484 transitions. [2025-03-04 14:58:40,850 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) [2025-03-04 14:58:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1484 transitions. [2025-03-04 14:58:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-04 14:58:40,852 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:40,853 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] [2025-03-04 14:58:40,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 14:58:40,854 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)] === [2025-03-04 14:58:40,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -368563717, now seen corresponding path program 1 times [2025-03-04 14:58:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372285549] [2025-03-04 14:58:40,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:40,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-04 14:58:40,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-04 14:58:40,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:40,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:41,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:41,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372285549] [2025-03-04 14:58:41,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372285549] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:41,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207028485] [2025-03-04 14:58:41,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:41,221 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) [2025-03-04 14:58:41,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 14:58:41,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-04 14:58:41,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-04 14:58:41,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:41,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:41,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 14:58:41,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:41,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:41,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207028485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:41,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:58:41,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-03-04 14:58:41,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168803502] [2025-03-04 14:58:41,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:41,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 14:58:41,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:41,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 14:58:41,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-04 14:58:41,492 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) [2025-03-04 14:58:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:41,619 INFO L93 Difference]: Finished difference Result 1431 states and 1995 transitions. [2025-03-04 14:58:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 14:58:41,620 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 [2025-03-04 14:58:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:41,626 INFO L225 Difference]: With dead ends: 1431 [2025-03-04 14:58:41,626 INFO L226 Difference]: Without dead ends: 1430 [2025-03-04 14:58:41,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-03-04 14:58:41,627 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 [2025-03-04 14:58:41,628 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] [2025-03-04 14:58:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2025-03-04 14:58:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1381. [2025-03-04 14:58:41,657 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) [2025-03-04 14:58:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1939 transitions. [2025-03-04 14:58:41,662 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1939 transitions. Word has length 81 [2025-03-04 14:58:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:41,662 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1939 transitions. [2025-03-04 14:58:41,663 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) [2025-03-04 14:58:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1939 transitions. [2025-03-04 14:58:41,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-04 14:58:41,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:41,664 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] [2025-03-04 14:58:41,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 14:58:41,864 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 [2025-03-04 14:58:41,865 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)] === [2025-03-04 14:58:41,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:41,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1459426639, now seen corresponding path program 1 times [2025-03-04 14:58:41,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:41,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053169185] [2025-03-04 14:58:41,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:41,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:41,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-04 14:58:41,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-04 14:58:41,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:41,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:42,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:42,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053169185] [2025-03-04 14:58:42,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053169185] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:42,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161138100] [2025-03-04 14:58:42,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:42,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:42,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:42,092 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) [2025-03-04 14:58:42,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 14:58:42,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-04 14:58:42,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-04 14:58:42,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:42,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:42,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 14:58:42,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:42,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:58:42,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:42,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161138100] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:58:42,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:58:42,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-03-04 14:58:42,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412502424] [2025-03-04 14:58:42,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:58:42,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 14:58:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:42,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 14:58:42,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-04 14:58:42,632 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) [2025-03-04 14:58:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:43,787 INFO L93 Difference]: Finished difference Result 3730 states and 5221 transitions. [2025-03-04 14:58:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-04 14:58:43,788 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 [2025-03-04 14:58:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:43,801 INFO L225 Difference]: With dead ends: 3730 [2025-03-04 14:58:43,801 INFO L226 Difference]: Without dead ends: 3728 [2025-03-04 14:58:43,803 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 [2025-03-04 14:58:43,803 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 [2025-03-04 14:58:43,804 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] [2025-03-04 14:58:43,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2025-03-04 14:58:43,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 2763. [2025-03-04 14:58:43,898 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) [2025-03-04 14:58:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3875 transitions. [2025-03-04 14:58:43,906 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3875 transitions. Word has length 82 [2025-03-04 14:58:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:43,907 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3875 transitions. [2025-03-04 14:58:43,907 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) [2025-03-04 14:58:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3875 transitions. [2025-03-04 14:58:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-04 14:58:43,908 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:43,908 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] [2025-03-04 14:58:43,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 14:58:44,108 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 [2025-03-04 14:58:44,108 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)] === [2025-03-04 14:58:44,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:44,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1021200483, now seen corresponding path program 1 times [2025-03-04 14:58:44,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:44,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396130093] [2025-03-04 14:58:44,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:44,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:44,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-04 14:58:44,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-04 14:58:44,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:44,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:44,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:44,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396130093] [2025-03-04 14:58:44,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396130093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:44,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:44,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:58:44,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337576830] [2025-03-04 14:58:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:58:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:44,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:58:44,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:58:44,199 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) [2025-03-04 14:58:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:44,391 INFO L93 Difference]: Finished difference Result 5779 states and 8147 transitions. [2025-03-04 14:58:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:58:44,392 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 [2025-03-04 14:58:44,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:44,403 INFO L225 Difference]: With dead ends: 5779 [2025-03-04 14:58:44,403 INFO L226 Difference]: Without dead ends: 3025 [2025-03-04 14:58:44,409 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 [2025-03-04 14:58:44,410 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, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:58:44,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1291 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:58:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2025-03-04 14:58:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2914. [2025-03-04 14:58:44,460 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) [2025-03-04 14:58:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4125 transitions. [2025-03-04 14:58:44,468 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4125 transitions. Word has length 80 [2025-03-04 14:58:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:44,468 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4125 transitions. [2025-03-04 14:58:44,468 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) [2025-03-04 14:58:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4125 transitions. [2025-03-04 14:58:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-04 14:58:44,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:44,469 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] [2025-03-04 14:58:44,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 14:58:44,469 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)] === [2025-03-04 14:58:44,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:44,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1189884257, now seen corresponding path program 1 times [2025-03-04 14:58:44,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248672147] [2025-03-04 14:58:44,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:44,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 14:58:44,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 14:58:44,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:44,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:44,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:44,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248672147] [2025-03-04 14:58:44,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248672147] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:44,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244005326] [2025-03-04 14:58:44,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:44,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:44,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:44,681 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) [2025-03-04 14:58:44,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 14:58:44,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 14:58:44,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 14:58:44,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:44,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:44,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 14:58:44,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:45,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:58:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244005326] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:45,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-04 14:58:45,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-03-04 14:58:45,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845676722] [2025-03-04 14:58:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:45,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 14:58:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:45,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 14:58:45,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-04 14:58:45,182 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) [2025-03-04 14:58:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:45,317 INFO L93 Difference]: Finished difference Result 2914 states and 4125 transitions. [2025-03-04 14:58:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:58:45,318 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 [2025-03-04 14:58:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:45,326 INFO L225 Difference]: With dead ends: 2914 [2025-03-04 14:58:45,326 INFO L226 Difference]: Without dead ends: 2913 [2025-03-04 14:58:45,327 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 [2025-03-04 14:58:45,327 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 [2025-03-04 14:58:45,327 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] [2025-03-04 14:58:45,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2025-03-04 14:58:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2913. [2025-03-04 14:58:45,377 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) [2025-03-04 14:58:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4120 transitions. [2025-03-04 14:58:45,383 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4120 transitions. Word has length 91 [2025-03-04 14:58:45,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:45,383 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4120 transitions. [2025-03-04 14:58:45,383 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) [2025-03-04 14:58:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4120 transitions. [2025-03-04 14:58:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-04 14:58:45,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:45,384 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] [2025-03-04 14:58:45,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 14:58:45,584 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 [2025-03-04 14:58:45,585 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)] === [2025-03-04 14:58:45,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:45,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1768293694, now seen corresponding path program 1 times [2025-03-04 14:58:45,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:45,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402099287] [2025-03-04 14:58:45,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:45,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:45,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 14:58:45,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 14:58:45,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:45,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:45,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402099287] [2025-03-04 14:58:45,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402099287] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929409897] [2025-03-04 14:58:45,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:45,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:45,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:45,762 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) [2025-03-04 14:58:45,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 14:58:45,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 14:58:45,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 14:58:45,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:45,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:45,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 14:58:45,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:46,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:58:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929409897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:58:46,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:58:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-03-04 14:58:46,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735343172] [2025-03-04 14:58:46,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:58:46,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 14:58:46,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:46,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 14:58:46,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-03-04 14:58:46,235 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) [2025-03-04 14:58:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:46,797 INFO L93 Difference]: Finished difference Result 5845 states and 8268 transitions. [2025-03-04 14:58:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 14:58:46,797 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 [2025-03-04 14:58:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:46,813 INFO L225 Difference]: With dead ends: 5845 [2025-03-04 14:58:46,813 INFO L226 Difference]: Without dead ends: 5844 [2025-03-04 14:58:46,815 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 [2025-03-04 14:58:46,815 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 1559 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2025-03-04 14:58:46,816 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] [2025-03-04 14:58:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2025-03-04 14:58:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5411. [2025-03-04 14:58:46,914 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) [2025-03-04 14:58:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 7652 transitions. [2025-03-04 14:58:46,923 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 7652 transitions. Word has length 92 [2025-03-04 14:58:46,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:46,923 INFO L471 AbstractCegarLoop]: Abstraction has 5411 states and 7652 transitions. [2025-03-04 14:58:46,923 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) [2025-03-04 14:58:46,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 7652 transitions. [2025-03-04 14:58:46,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-04 14:58:46,924 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:46,924 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] [2025-03-04 14:58:46,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 14:58:47,125 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 [2025-03-04 14:58:47,125 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)] === [2025-03-04 14:58:47,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:47,126 INFO L85 PathProgramCache]: Analyzing trace with hash -69961688, now seen corresponding path program 1 times [2025-03-04 14:58:47,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:47,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815569957] [2025-03-04 14:58:47,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:47,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:47,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-04 14:58:47,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-04 14:58:47,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:47,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 14:58:47,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:47,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815569957] [2025-03-04 14:58:47,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815569957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:47,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:58:47,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:58:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739261324] [2025-03-04 14:58:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:47,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:58:47,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:47,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:58:47,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 14:58:47,362 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) [2025-03-04 14:58:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:47,581 INFO L93 Difference]: Finished difference Result 7643 states and 10875 transitions. [2025-03-04 14:58:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:58:47,581 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 [2025-03-04 14:58:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:47,611 INFO L225 Difference]: With dead ends: 7643 [2025-03-04 14:58:47,611 INFO L226 Difference]: Without dead ends: 7641 [2025-03-04 14:58:47,615 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 [2025-03-04 14:58:47,617 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, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:58:47,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1593 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:58:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2025-03-04 14:58:47,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 5577. [2025-03-04 14:58:47,779 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) [2025-03-04 14:58:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5577 states to 5577 states and 7869 transitions. [2025-03-04 14:58:47,790 INFO L78 Accepts]: Start accepts. Automaton has 5577 states and 7869 transitions. Word has length 118 [2025-03-04 14:58:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:47,790 INFO L471 AbstractCegarLoop]: Abstraction has 5577 states and 7869 transitions. [2025-03-04 14:58:47,790 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) [2025-03-04 14:58:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5577 states and 7869 transitions. [2025-03-04 14:58:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-04 14:58:47,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:47,791 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] [2025-03-04 14:58:47,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 14:58:47,792 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)] === [2025-03-04 14:58:47,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:47,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1879760466, now seen corresponding path program 1 times [2025-03-04 14:58:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:47,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824443264] [2025-03-04 14:58:47,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:47,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:47,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-04 14:58:47,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-04 14:58:47,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:47,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824443264] [2025-03-04 14:58:48,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824443264] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:48,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89347520] [2025-03-04 14:58:48,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:48,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:48,031 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) [2025-03-04 14:58:48,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 14:58:48,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-04 14:58:48,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-04 14:58:48,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:48,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:48,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 14:58:48,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 14:58:48,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:48,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89347520] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:48,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:58:48,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-03-04 14:58:48,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747715525] [2025-03-04 14:58:48,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:48,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 14:58:48,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:48,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 14:58:48,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 14:58:48,378 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) [2025-03-04 14:58:48,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:48,655 INFO L93 Difference]: Finished difference Result 10632 states and 15058 transitions. [2025-03-04 14:58:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 14:58:48,656 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 [2025-03-04 14:58:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:48,666 INFO L225 Difference]: With dead ends: 10632 [2025-03-04 14:58:48,666 INFO L226 Difference]: Without dead ends: 5371 [2025-03-04 14:58:48,672 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 [2025-03-04 14:58:48,672 INFO L435 NwaCegarLoop]: 535 mSDtfsCounter, 85 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2025-03-04 14:58:48,673 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] [2025-03-04 14:58:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2025-03-04 14:58:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2025-03-04 14:58:48,765 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) [2025-03-04 14:58:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7599 transitions. [2025-03-04 14:58:48,778 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7599 transitions. Word has length 125 [2025-03-04 14:58:48,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:48,778 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7599 transitions. [2025-03-04 14:58:48,779 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) [2025-03-04 14:58:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7599 transitions. [2025-03-04 14:58:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-04 14:58:48,782 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:48,782 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] [2025-03-04 14:58:48,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 14:58:48,982 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 [2025-03-04 14:58:48,983 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)] === [2025-03-04 14:58:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1995254625, now seen corresponding path program 1 times [2025-03-04 14:58:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:48,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299302159] [2025-03-04 14:58:48,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:48,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:49,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-04 14:58:49,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 14:58:49,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:49,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 14:58:49,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:49,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299302159] [2025-03-04 14:58:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299302159] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:49,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893107725] [2025-03-04 14:58:49,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:49,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:49,362 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) [2025-03-04 14:58:49,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 14:58:49,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-04 14:58:49,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 14:58:49,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:49,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:49,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-04 14:58:49,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:49,698 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 [2025-03-04 14:58:49,713 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 [2025-03-04 14:58:49,728 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 [2025-03-04 14:58:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 14:58:50,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:50,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893107725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:50,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:58:50,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-03-04 14:58:50,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632078073] [2025-03-04 14:58:50,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:50,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 14:58:50,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:50,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 14:58:50,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-03-04 14:58:50,245 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) [2025-03-04 14:58:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:51,155 INFO L93 Difference]: Finished difference Result 12775 states and 18156 transitions. [2025-03-04 14:58:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 14:58:51,155 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 [2025-03-04 14:58:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:51,170 INFO L225 Difference]: With dead ends: 12775 [2025-03-04 14:58:51,170 INFO L226 Difference]: Without dead ends: 7449 [2025-03-04 14:58:51,176 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 [2025-03-04 14:58:51,177 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 649 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 14:58:51,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2920 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 14:58:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2025-03-04 14:58:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 5371. [2025-03-04 14:58:51,272 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) [2025-03-04 14:58:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7598 transitions. [2025-03-04 14:58:51,280 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7598 transitions. Word has length 130 [2025-03-04 14:58:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:51,280 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7598 transitions. [2025-03-04 14:58:51,280 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) [2025-03-04 14:58:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7598 transitions. [2025-03-04 14:58:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-04 14:58:51,282 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:51,282 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] [2025-03-04 14:58:51,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 14:58:51,482 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 [2025-03-04 14:58:51,483 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)] === [2025-03-04 14:58:51,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:51,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1587166958, now seen corresponding path program 1 times [2025-03-04 14:58:51,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:51,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471910620] [2025-03-04 14:58:51,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:51,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:51,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-04 14:58:51,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-04 14:58:51,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:51,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 14:58:51,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:51,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471910620] [2025-03-04 14:58:51,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471910620] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:51,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169583559] [2025-03-04 14:58:51,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:51,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:51,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:51,743 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) [2025-03-04 14:58:51,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 14:58:51,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-04 14:58:52,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-04 14:58:52,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:52,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:52,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 14:58:52,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:58:52,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:58:52,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169583559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:58:52,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:58:52,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-03-04 14:58:52,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772166585] [2025-03-04 14:58:52,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:58:52,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 14:58:52,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:52,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 14:58:52,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-04 14:58:52,144 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) [2025-03-04 14:58:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:58:52,367 INFO L93 Difference]: Finished difference Result 8203 states and 11569 transitions. [2025-03-04 14:58:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 14:58:52,368 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 [2025-03-04 14:58:52,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:58:52,376 INFO L225 Difference]: With dead ends: 8203 [2025-03-04 14:58:52,376 INFO L226 Difference]: Without dead ends: 2915 [2025-03-04 14:58:52,383 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 [2025-03-04 14:58:52,384 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 [2025-03-04 14:58:52,384 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] [2025-03-04 14:58:52,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2025-03-04 14:58:52,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2913. [2025-03-04 14:58:52,451 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) [2025-03-04 14:58:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4049 transitions. [2025-03-04 14:58:52,456 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4049 transitions. Word has length 131 [2025-03-04 14:58:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:58:52,457 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4049 transitions. [2025-03-04 14:58:52,457 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) [2025-03-04 14:58:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4049 transitions. [2025-03-04 14:58:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-04 14:58:52,458 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:58:52,458 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] [2025-03-04 14:58:52,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 14:58:52,658 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 [2025-03-04 14:58:52,659 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)] === [2025-03-04 14:58:52,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:58:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1796911606, now seen corresponding path program 1 times [2025-03-04 14:58:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:58:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965359123] [2025-03-04 14:58:52,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:58:52,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 14:58:52,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 14:58:52,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:52,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 14:58:56,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:58:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965359123] [2025-03-04 14:58:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965359123] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:58:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720355935] [2025-03-04 14:58:56,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:58:56,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:58:56,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:58:56,872 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) [2025-03-04 14:58:56,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 14:58:57,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 14:58:57,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 14:58:57,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:58:57,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:58:57,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 14:58:57,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:58:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 14:58:57,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:58:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 14:58:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720355935] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:58:57,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:58:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 10, 6] total 41 [2025-03-04 14:58:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519468546] [2025-03-04 14:58:57,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:58:57,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-04 14:58:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:58:57,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-04 14:58:57,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1526, Unknown=0, NotChecked=0, Total=1640 [2025-03-04 14:58:57,605 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) [2025-03-04 14:59:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:59:01,483 INFO L93 Difference]: Finished difference Result 6778 states and 9484 transitions. [2025-03-04 14:59:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-04 14:59:01,483 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 [2025-03-04 14:59:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:59:01,491 INFO L225 Difference]: With dead ends: 6778 [2025-03-04 14:59:01,491 INFO L226 Difference]: Without dead ends: 3948 [2025-03-04 14:59:01,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=521, Invalid=5799, Unknown=0, NotChecked=0, Total=6320 [2025-03-04 14:59:01,496 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 564 mSDsluCounter, 13850 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.8s IncrementalHoareTripleChecker+Time [2025-03-04 14:59:01,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 14336 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-04 14:59:01,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2025-03-04 14:59:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 2995. [2025-03-04 14:59:01,576 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) [2025-03-04 14:59:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 4151 transitions. [2025-03-04 14:59:01,580 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 4151 transitions. Word has length 133 [2025-03-04 14:59:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:59:01,580 INFO L471 AbstractCegarLoop]: Abstraction has 2995 states and 4151 transitions. [2025-03-04 14:59:01,580 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) [2025-03-04 14:59:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 4151 transitions. [2025-03-04 14:59:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-04 14:59:01,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:59:01,581 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] [2025-03-04 14:59:01,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 14:59:01,786 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 [2025-03-04 14:59:01,786 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)] === [2025-03-04 14:59:01,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:59:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -276624723, now seen corresponding path program 1 times [2025-03-04 14:59:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:59:01,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636167824] [2025-03-04 14:59:01,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:59:01,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:59:01,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-04 14:59:01,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-04 14:59:01,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:59:01,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-04 14:59:02,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:59:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636167824] [2025-03-04 14:59:02,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636167824] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:59:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306565445] [2025-03-04 14:59:02,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:59:02,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:59:02,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:59:02,145 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) [2025-03-04 14:59:02,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 14:59:02,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-04 14:59:02,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-04 14:59:02,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:59:02,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:02,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-04 14:59:02,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:59:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 14:59:02,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:59:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-04 14:59:02,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306565445] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:59:02,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:59:02,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-03-04 14:59:02,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683929892] [2025-03-04 14:59:02,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:59:02,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-04 14:59:02,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:59:02,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-04 14:59:02,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-03-04 14:59:02,805 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) [2025-03-04 14:59:03,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:59:03,641 INFO L93 Difference]: Finished difference Result 5956 states and 8294 transitions. [2025-03-04 14:59:03,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-04 14:59:03,641 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 [2025-03-04 14:59:03,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:59:03,647 INFO L225 Difference]: With dead ends: 5956 [2025-03-04 14:59:03,647 INFO L226 Difference]: Without dead ends: 3032 [2025-03-04 14:59:03,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2025-03-04 14:59:03,651 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 51 mSDsluCounter, 5863 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2025-03-04 14:59:03,651 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] [2025-03-04 14:59:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2025-03-04 14:59:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2998. [2025-03-04 14:59:03,715 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) [2025-03-04 14:59:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4148 transitions. [2025-03-04 14:59:03,719 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4148 transitions. Word has length 137 [2025-03-04 14:59:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:59:03,720 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4148 transitions. [2025-03-04 14:59:03,720 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) [2025-03-04 14:59:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4148 transitions. [2025-03-04 14:59:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-04 14:59:03,721 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:59:03,721 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] [2025-03-04 14:59:03,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 14:59:03,922 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 [2025-03-04 14:59:03,922 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)] === [2025-03-04 14:59:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:59:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash 58161071, now seen corresponding path program 2 times [2025-03-04 14:59:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:59:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797974137] [2025-03-04 14:59:03,923 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:59:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:59:03,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-04 14:59:04,058 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 146 of 146 statements. [2025-03-04 14:59:04,058 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 14:59:04,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-04 14:59:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:59:04,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797974137] [2025-03-04 14:59:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797974137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:59:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150378596] [2025-03-04 14:59:04,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:59:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:59:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:59:04,538 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) [2025-03-04 14:59:04,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 14:59:04,776 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-04 14:59:04,786 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 146 statements. [2025-03-04 14:59:04,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 14:59:04,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:04,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 14:59:04,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:59:04,795 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 [2025-03-04 14:59:04,806 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-03-04 14:59:04,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:59:04,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150378596] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:59:04,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:59:04,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15] total 16 [2025-03-04 14:59:04,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988898018] [2025-03-04 14:59:04,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:59:04,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:59:04,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:59:04,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:59:04,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-04 14:59:04,807 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) [2025-03-04 14:59:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:59:04,891 INFO L93 Difference]: Finished difference Result 2998 states and 4148 transitions. [2025-03-04 14:59:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:59:04,892 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 [2025-03-04 14:59:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:59:04,897 INFO L225 Difference]: With dead ends: 2998 [2025-03-04 14:59:04,897 INFO L226 Difference]: Without dead ends: 2997 [2025-03-04 14:59:04,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-04 14:59:04,898 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 [2025-03-04 14:59:04,898 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] [2025-03-04 14:59:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-03-04 14:59:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2997. [2025-03-04 14:59:04,961 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) [2025-03-04 14:59:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 4142 transitions. [2025-03-04 14:59:04,965 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 4142 transitions. Word has length 146 [2025-03-04 14:59:04,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:59:04,965 INFO L471 AbstractCegarLoop]: Abstraction has 2997 states and 4142 transitions. [2025-03-04 14:59:04,965 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) [2025-03-04 14:59:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 4142 transitions. [2025-03-04 14:59:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 14:59:04,966 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:59:04,966 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] [2025-03-04 14:59:04,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 14:59:05,166 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 [2025-03-04 14:59:05,167 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)] === [2025-03-04 14:59:05,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:59:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1802993950, now seen corresponding path program 1 times [2025-03-04 14:59:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:59:05,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002169279] [2025-03-04 14:59:05,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:59:05,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:59:05,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 14:59:05,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 14:59:05,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:59:05,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-04 14:59:05,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:59:05,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002169279] [2025-03-04 14:59:05,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002169279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:59:05,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701282739] [2025-03-04 14:59:05,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:59:05,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:59:05,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:59:05,728 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) [2025-03-04 14:59:05,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 14:59:05,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 14:59:06,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 14:59:06,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:59:06,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:59:06,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 14:59:06,299 INFO L279 TraceCheckSpWp]: Computing forward predicates...