./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:14:15,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:14:15,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:14:15,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:14:15,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:14:15,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:14:15,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:14:15,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:14:15,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:14:15,532 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:14:15,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:14:15,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:14:15,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:14:15,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:14:15,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:14:15,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:14:15,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:14:15,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:14:15,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:14:15,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:14:15,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:14:15,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:14:15,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:14:15,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:14:15,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:14:15,537 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2025-01-10 00:14:15,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:14:15,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:14:15,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:14:15,776 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:14:15,776 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:14:15,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2025-01-10 00:14:16,920 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c7c450a2/5d9725ac10a04b6788c4674e8b278ff5/FLAG2d09fc32e [2025-01-10 00:14:17,326 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:14:17,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2025-01-10 00:14:17,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c7c450a2/5d9725ac10a04b6788c4674e8b278ff5/FLAG2d09fc32e [2025-01-10 00:14:17,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c7c450a2/5d9725ac10a04b6788c4674e8b278ff5 [2025-01-10 00:14:17,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:14:17,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:14:17,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:14:17,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:14:17,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:14:17,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:17,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169e4f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17, skipping insertion in model container [2025-01-10 00:14:17,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:17,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:14:17,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,800 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,805 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,808 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,811 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,825 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:14:17,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:14:17,838 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:14:17,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:14:17,978 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:14:17,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17 WrapperNode [2025-01-10 00:14:17,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:14:17,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:14:17,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:14:17,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:14:17,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,088 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3254 [2025-01-10 00:14:18,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:14:18,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:14:18,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:14:18,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:14:18,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,190 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2025-01-10 00:14:18,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:14:18,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:14:18,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:14:18,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:14:18,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (1/1) ... [2025-01-10 00:14:18,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:14:18,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:14:18,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:14:18,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:14:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:14:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:14:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:14:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:14:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:14:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 00:14:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:14:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:14:18,513 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:14:18,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:14:18,527 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:14:18,551 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:14:18,568 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:14:21,153 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2025-01-10 00:14:21,153 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:14:21,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:14:21,216 INFO L312 CfgBuilder]: Removed 27 assume(true) statements. [2025-01-10 00:14:21,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:14:21 BoogieIcfgContainer [2025-01-10 00:14:21,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:14:21,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:14:21,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:14:21,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:14:21,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:14:17" (1/3) ... [2025-01-10 00:14:21,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5110f3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:14:21, skipping insertion in model container [2025-01-10 00:14:21,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:14:17" (2/3) ... [2025-01-10 00:14:21,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5110f3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:14:21, skipping insertion in model container [2025-01-10 00:14:21,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:14:21" (3/3) ... [2025-01-10 00:14:21,223 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2025-01-10 00:14:21,233 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:14:21,234 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test9-1.i that has 6 procedures, 2074 locations, 1 initial locations, 33 loop locations, and 424 error locations. [2025-01-10 00:14:21,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:14:21,292 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=None, 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;@1a84484f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:14:21,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2025-01-10 00:14:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 2064 states, 1134 states have (on average 2.005291005291005) internal successors, (2274), 2057 states have internal predecessors, (2274), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-01-10 00:14:21,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:14:21,301 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:21,302 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:14:21,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2025-01-10 00:14:21,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935714046] [2025-01-10 00:14:21,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:21,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:21,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:14:21,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:14:21,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:21,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:21,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:21,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935714046] [2025-01-10 00:14:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935714046] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:21,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:21,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:14:21,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425525291] [2025-01-10 00:14:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:21,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:21,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:21,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:21,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:21,472 INFO L87 Difference]: Start difference. First operand has 2064 states, 1134 states have (on average 2.005291005291005) internal successors, (2274), 2057 states have internal predecessors, (2274), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-01-10 00:14:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:22,459 INFO L93 Difference]: Finished difference Result 2050 states and 3214 transitions. [2025-01-10 00:14:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-01-10 00:14:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:22,488 INFO L225 Difference]: With dead ends: 2050 [2025-01-10 00:14:22,489 INFO L226 Difference]: Without dead ends: 2048 [2025-01-10 00:14:22,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:22,492 INFO L435 NwaCegarLoop]: 2825 mSDtfsCounter, 2089 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:22,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2592 Valid, 2877 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-10 00:14:22,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2025-01-10 00:14:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2025-01-10 00:14:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 1136 states have (on average 1.9401408450704225) internal successors, (2204), 2041 states have internal predecessors, (2204), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-01-10 00:14:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 3212 transitions. [2025-01-10 00:14:22,752 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 3212 transitions. Word has length 3 [2025-01-10 00:14:22,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:22,752 INFO L471 AbstractCegarLoop]: Abstraction has 2048 states and 3212 transitions. [2025-01-10 00:14:22,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-01-10 00:14:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 3212 transitions. [2025-01-10 00:14:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:14:22,752 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:22,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:14:22,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:14:22,753 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:22,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2025-01-10 00:14:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287331431] [2025-01-10 00:14:22,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:22,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:14:22,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:14:22,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:22,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:22,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:22,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287331431] [2025-01-10 00:14:22,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287331431] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:22,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:22,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:14:22,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503715624] [2025-01-10 00:14:22,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:22,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:22,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:22,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:22,829 INFO L87 Difference]: Start difference. First operand 2048 states and 3212 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-01-10 00:14:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:23,922 INFO L93 Difference]: Finished difference Result 3811 states and 6127 transitions. [2025-01-10 00:14:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:23,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-01-10 00:14:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:23,942 INFO L225 Difference]: With dead ends: 3811 [2025-01-10 00:14:23,942 INFO L226 Difference]: Without dead ends: 3811 [2025-01-10 00:14:23,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:23,944 INFO L435 NwaCegarLoop]: 2927 mSDtfsCounter, 1907 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 5205 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:23,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 5205 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-10 00:14:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2025-01-10 00:14:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3547. [2025-01-10 00:14:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2136 states have (on average 1.921816479400749) internal successors, (4105), 3538 states have internal predecessors, (4105), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:24,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 6117 transitions. [2025-01-10 00:14:24,218 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 6117 transitions. Word has length 3 [2025-01-10 00:14:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:24,219 INFO L471 AbstractCegarLoop]: Abstraction has 3547 states and 6117 transitions. [2025-01-10 00:14:24,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-01-10 00:14:24,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 6117 transitions. [2025-01-10 00:14:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:14:24,219 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:24,219 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:24,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 00:14:24,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:24,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:24,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2025-01-10 00:14:24,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:24,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406070996] [2025-01-10 00:14:24,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:24,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:24,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:14:24,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:14:24,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:24,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:24,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:24,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406070996] [2025-01-10 00:14:24,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406070996] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:24,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:24,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:14:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187916743] [2025-01-10 00:14:24,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:24,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:24,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:24,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:24,299 INFO L87 Difference]: Start difference. First operand 3547 states and 6117 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 00:14:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:25,244 INFO L93 Difference]: Finished difference Result 4810 states and 8434 transitions. [2025-01-10 00:14:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:25,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2025-01-10 00:14:25,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:25,265 INFO L225 Difference]: With dead ends: 4810 [2025-01-10 00:14:25,265 INFO L226 Difference]: Without dead ends: 4810 [2025-01-10 00:14:25,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:25,266 INFO L435 NwaCegarLoop]: 4985 mSDtfsCounter, 2074 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2577 SdHoareTripleChecker+Valid, 7290 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:25,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2577 Valid, 7290 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-10 00:14:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2025-01-10 00:14:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3500. [2025-01-10 00:14:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 2136 states have (on average 1.8885767790262171) internal successors, (4034), 3491 states have internal predecessors, (4034), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 6046 transitions. [2025-01-10 00:14:25,575 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 6046 transitions. Word has length 9 [2025-01-10 00:14:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:25,575 INFO L471 AbstractCegarLoop]: Abstraction has 3500 states and 6046 transitions. [2025-01-10 00:14:25,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 00:14:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 6046 transitions. [2025-01-10 00:14:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:14:25,576 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:25,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:25,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 00:14:25,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:25,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2025-01-10 00:14:25,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:25,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487459857] [2025-01-10 00:14:25,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:25,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:25,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:14:25,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:14:25,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:25,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:25,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487459857] [2025-01-10 00:14:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487459857] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:25,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:25,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:14:25,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902113610] [2025-01-10 00:14:25,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:25,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:25,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:25,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:25,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:25,706 INFO L87 Difference]: Start difference. First operand 3500 states and 6046 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 00:14:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:26,601 INFO L93 Difference]: Finished difference Result 6020 states and 10782 transitions. [2025-01-10 00:14:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2025-01-10 00:14:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:26,624 INFO L225 Difference]: With dead ends: 6020 [2025-01-10 00:14:26,624 INFO L226 Difference]: Without dead ends: 6020 [2025-01-10 00:14:26,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:26,625 INFO L435 NwaCegarLoop]: 5120 mSDtfsCounter, 1867 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:26,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 7541 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-10 00:14:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2025-01-10 00:14:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3475. [2025-01-10 00:14:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 2136 states have (on average 1.8656367041198503) internal successors, (3985), 3466 states have internal predecessors, (3985), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 5997 transitions. [2025-01-10 00:14:26,963 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 5997 transitions. Word has length 9 [2025-01-10 00:14:26,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:26,965 INFO L471 AbstractCegarLoop]: Abstraction has 3475 states and 5997 transitions. [2025-01-10 00:14:26,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 00:14:26,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 5997 transitions. [2025-01-10 00:14:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-10 00:14:26,966 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:26,966 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:26,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 00:14:26,966 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:26,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1259420379, now seen corresponding path program 1 times [2025-01-10 00:14:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335923103] [2025-01-10 00:14:26,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:26,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:14:26,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:14:26,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:26,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:27,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:27,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335923103] [2025-01-10 00:14:27,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335923103] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:27,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:27,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:14:27,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762594357] [2025-01-10 00:14:27,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:27,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:14:27,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:27,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:14:27,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:14:27,057 INFO L87 Difference]: Start difference. First operand 3475 states and 5997 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-01-10 00:14:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:27,604 INFO L93 Difference]: Finished difference Result 6636 states and 11492 transitions. [2025-01-10 00:14:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:14:27,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2025-01-10 00:14:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:27,631 INFO L225 Difference]: With dead ends: 6636 [2025-01-10 00:14:27,631 INFO L226 Difference]: Without dead ends: 6636 [2025-01-10 00:14:27,631 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 [2025-01-10 00:14:27,632 INFO L435 NwaCegarLoop]: 3141 mSDtfsCounter, 2088 mSDsluCounter, 5714 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 8855 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:27,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 8855 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:14:27,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2025-01-10 00:14:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 3477. [2025-01-10 00:14:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2138 states have (on average 1.864826941066417) internal successors, (3987), 3468 states have internal predecessors, (3987), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 5999 transitions. [2025-01-10 00:14:27,982 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 5999 transitions. Word has length 10 [2025-01-10 00:14:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:27,982 INFO L471 AbstractCegarLoop]: Abstraction has 3477 states and 5999 transitions. [2025-01-10 00:14:27,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-01-10 00:14:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 5999 transitions. [2025-01-10 00:14:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:14:27,983 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:27,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:27,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 00:14:27,983 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:27,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 495194974, now seen corresponding path program 1 times [2025-01-10 00:14:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:27,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379680248] [2025-01-10 00:14:27,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:27,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:27,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:14:28,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:14:28,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:28,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:28,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:28,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379680248] [2025-01-10 00:14:28,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379680248] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:28,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:28,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:14:28,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47443338] [2025-01-10 00:14:28,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:28,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:14:28,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:28,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:14:28,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:14:28,076 INFO L87 Difference]: Start difference. First operand 3477 states and 5999 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-01-10 00:14:29,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:29,579 INFO L93 Difference]: Finished difference Result 3553 states and 6106 transitions. [2025-01-10 00:14:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:14:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-01-10 00:14:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:29,593 INFO L225 Difference]: With dead ends: 3553 [2025-01-10 00:14:29,595 INFO L226 Difference]: Without dead ends: 3553 [2025-01-10 00:14:29,596 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 [2025-01-10 00:14:29,596 INFO L435 NwaCegarLoop]: 2727 mSDtfsCounter, 2338 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:29,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2841 Valid, 4328 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-10 00:14:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2025-01-10 00:14:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 3454. [2025-01-10 00:14:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 2138 states have (on average 1.843311506080449) internal successors, (3941), 3445 states have internal predecessors, (3941), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5953 transitions. [2025-01-10 00:14:29,764 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5953 transitions. Word has length 19 [2025-01-10 00:14:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:29,764 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 5953 transitions. [2025-01-10 00:14:29,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-01-10 00:14:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5953 transitions. [2025-01-10 00:14:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:14:29,764 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:29,764 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:29,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 00:14:29,765 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:29,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash 495194975, now seen corresponding path program 1 times [2025-01-10 00:14:29,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076381420] [2025-01-10 00:14:29,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:29,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:14:29,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:14:29,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:29,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:29,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:29,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076381420] [2025-01-10 00:14:29,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076381420] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:29,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:29,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:14:29,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045915987] [2025-01-10 00:14:29,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:29,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:29,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:29,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:29,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:29,809 INFO L87 Difference]: Start difference. First operand 3454 states and 5953 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-01-10 00:14:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:29,841 INFO L93 Difference]: Finished difference Result 3316 states and 5747 transitions. [2025-01-10 00:14:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:29,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2025-01-10 00:14:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:29,854 INFO L225 Difference]: With dead ends: 3316 [2025-01-10 00:14:29,854 INFO L226 Difference]: Without dead ends: 3316 [2025-01-10 00:14:29,854 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 [2025-01-10 00:14:29,855 INFO L435 NwaCegarLoop]: 2993 mSDtfsCounter, 60 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 5933 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:29,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 5933 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:14:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2025-01-10 00:14:30,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3316. [2025-01-10 00:14:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2012 states have (on average 1.856361829025845) internal successors, (3735), 3307 states have internal predecessors, (3735), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 5747 transitions. [2025-01-10 00:14:30,035 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 5747 transitions. Word has length 19 [2025-01-10 00:14:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:30,035 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 5747 transitions. [2025-01-10 00:14:30,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-01-10 00:14:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 5747 transitions. [2025-01-10 00:14:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-10 00:14:30,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:30,036 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] [2025-01-10 00:14:30,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 00:14:30,037 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:30,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1828609380, now seen corresponding path program 1 times [2025-01-10 00:14:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252968585] [2025-01-10 00:14:30,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:30,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 00:14:30,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 00:14:30,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:30,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:30,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:30,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252968585] [2025-01-10 00:14:30,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252968585] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:30,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:30,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:14:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073157985] [2025-01-10 00:14:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:30,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:14:30,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:30,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:14:30,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:14:30,105 INFO L87 Difference]: Start difference. First operand 3316 states and 5747 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-01-10 00:14:30,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:30,159 INFO L93 Difference]: Finished difference Result 3287 states and 5697 transitions. [2025-01-10 00:14:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:14:30,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2025-01-10 00:14:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:30,166 INFO L225 Difference]: With dead ends: 3287 [2025-01-10 00:14:30,166 INFO L226 Difference]: Without dead ends: 3287 [2025-01-10 00:14:30,167 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 [2025-01-10 00:14:30,167 INFO L435 NwaCegarLoop]: 2958 mSDtfsCounter, 41 mSDsluCounter, 5888 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8846 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:30,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8846 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:14:30,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2025-01-10 00:14:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3281. [2025-01-10 00:14:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 1984 states have (on average 1.8543346774193548) internal successors, (3679), 3272 states have internal predecessors, (3679), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 5691 transitions. [2025-01-10 00:14:30,344 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 5691 transitions. Word has length 20 [2025-01-10 00:14:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:30,344 INFO L471 AbstractCegarLoop]: Abstraction has 3281 states and 5691 transitions. [2025-01-10 00:14:30,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-01-10 00:14:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 5691 transitions. [2025-01-10 00:14:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-01-10 00:14:30,345 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:30,345 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] [2025-01-10 00:14:30,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 00:14:30,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:30,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1048342954, now seen corresponding path program 1 times [2025-01-10 00:14:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:30,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818854401] [2025-01-10 00:14:30,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:30,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 00:14:30,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 00:14:30,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:30,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:30,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:30,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818854401] [2025-01-10 00:14:30,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818854401] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:30,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:30,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:14:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669718179] [2025-01-10 00:14:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:30,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:14:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:30,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:14:30,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:14:30,485 INFO L87 Difference]: Start difference. First operand 3281 states and 5691 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-01-10 00:14:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:32,377 INFO L93 Difference]: Finished difference Result 6055 states and 10800 transitions. [2025-01-10 00:14:32,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:14:32,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2025-01-10 00:14:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:32,392 INFO L225 Difference]: With dead ends: 6055 [2025-01-10 00:14:32,392 INFO L226 Difference]: Without dead ends: 6055 [2025-01-10 00:14:32,393 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 [2025-01-10 00:14:32,394 INFO L435 NwaCegarLoop]: 2796 mSDtfsCounter, 1816 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:32,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 6374 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:14:32,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2025-01-10 00:14:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3277. [2025-01-10 00:14:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3277 states, 1984 states have (on average 1.8503024193548387) internal successors, (3671), 3268 states have internal predecessors, (3671), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3277 states to 3277 states and 5683 transitions. [2025-01-10 00:14:32,821 INFO L78 Accepts]: Start accepts. Automaton has 3277 states and 5683 transitions. Word has length 34 [2025-01-10 00:14:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:32,822 INFO L471 AbstractCegarLoop]: Abstraction has 3277 states and 5683 transitions. [2025-01-10 00:14:32,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-01-10 00:14:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3277 states and 5683 transitions. [2025-01-10 00:14:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-01-10 00:14:32,823 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:32,823 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:32,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 00:14:32,823 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1085651552, now seen corresponding path program 1 times [2025-01-10 00:14:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:32,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326046859] [2025-01-10 00:14:32,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:32,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-10 00:14:32,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-10 00:14:32,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:32,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:32,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:32,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326046859] [2025-01-10 00:14:32,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326046859] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:32,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:32,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:14:32,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324246446] [2025-01-10 00:14:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:32,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:14:32,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:32,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:14:32,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:14:32,912 INFO L87 Difference]: Start difference. First operand 3277 states and 5683 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:14:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:32,962 INFO L93 Difference]: Finished difference Result 3277 states and 5675 transitions. [2025-01-10 00:14:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:14:32,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-01-10 00:14:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:32,971 INFO L225 Difference]: With dead ends: 3277 [2025-01-10 00:14:32,972 INFO L226 Difference]: Without dead ends: 3277 [2025-01-10 00:14:32,972 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 [2025-01-10 00:14:32,972 INFO L435 NwaCegarLoop]: 2953 mSDtfsCounter, 21 mSDsluCounter, 5875 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8828 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:32,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8828 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:14:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2025-01-10 00:14:33,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3277. [2025-01-10 00:14:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3277 states, 1984 states have (on average 1.8462701612903225) internal successors, (3663), 3268 states have internal predecessors, (3663), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2025-01-10 00:14:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3277 states to 3277 states and 5675 transitions. [2025-01-10 00:14:33,138 INFO L78 Accepts]: Start accepts. Automaton has 3277 states and 5675 transitions. Word has length 68 [2025-01-10 00:14:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:33,138 INFO L471 AbstractCegarLoop]: Abstraction has 3277 states and 5675 transitions. [2025-01-10 00:14:33,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:14:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3277 states and 5675 transitions. [2025-01-10 00:14:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-01-10 00:14:33,140 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:33,140 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] [2025-01-10 00:14:33,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 00:14:33,140 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:33,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:33,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1491712468, now seen corresponding path program 1 times [2025-01-10 00:14:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:33,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891296406] [2025-01-10 00:14:33,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:33,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:33,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-01-10 00:14:33,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-01-10 00:14:33,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:33,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:33,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:33,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891296406] [2025-01-10 00:14:33,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891296406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:33,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:33,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:14:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164642063] [2025-01-10 00:14:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:33,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:14:33,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:33,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:14:33,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:14:33,284 INFO L87 Difference]: Start difference. First operand 3277 states and 5675 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 00:14:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:33,350 INFO L93 Difference]: Finished difference Result 5785 states and 10395 transitions. [2025-01-10 00:14:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:14:33,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2025-01-10 00:14:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:33,365 INFO L225 Difference]: With dead ends: 5785 [2025-01-10 00:14:33,365 INFO L226 Difference]: Without dead ends: 5785 [2025-01-10 00:14:33,365 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 [2025-01-10 00:14:33,366 INFO L435 NwaCegarLoop]: 3260 mSDtfsCounter, 1353 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:33,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 6182 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:14:33,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2025-01-10 00:14:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 5728. [2025-01-10 00:14:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5728 states, 3435 states have (on average 1.8573508005822417) internal successors, (6380), 5719 states have internal predecessors, (6380), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2025-01-10 00:14:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5728 states to 5728 states and 10392 transitions. [2025-01-10 00:14:33,673 INFO L78 Accepts]: Start accepts. Automaton has 5728 states and 10392 transitions. Word has length 76 [2025-01-10 00:14:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:33,673 INFO L471 AbstractCegarLoop]: Abstraction has 5728 states and 10392 transitions. [2025-01-10 00:14:33,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 00:14:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5728 states and 10392 transitions. [2025-01-10 00:14:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-10 00:14:33,674 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:33,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:33,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 00:14:33,674 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:33,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1497079487, now seen corresponding path program 1 times [2025-01-10 00:14:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500514133] [2025-01-10 00:14:33,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:33,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-10 00:14:33,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-10 00:14:33,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:33,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:33,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:33,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500514133] [2025-01-10 00:14:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500514133] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:33,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:14:33,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430363369] [2025-01-10 00:14:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:33,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:14:33,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:33,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:14:33,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:14:33,893 INFO L87 Difference]: Start difference. First operand 5728 states and 10392 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-01-10 00:14:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:34,407 INFO L93 Difference]: Finished difference Result 5727 states and 10390 transitions. [2025-01-10 00:14:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:14:34,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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 84 [2025-01-10 00:14:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:34,420 INFO L225 Difference]: With dead ends: 5727 [2025-01-10 00:14:34,420 INFO L226 Difference]: Without dead ends: 5727 [2025-01-10 00:14:34,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:14:34,421 INFO L435 NwaCegarLoop]: 2963 mSDtfsCounter, 2 mSDsluCounter, 7898 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10861 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:34,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10861 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:14:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2025-01-10 00:14:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5727. [2025-01-10 00:14:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 3435 states have (on average 1.8567685589519651) internal successors, (6378), 5718 states have internal predecessors, (6378), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2025-01-10 00:14:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 10390 transitions. [2025-01-10 00:14:34,728 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 10390 transitions. Word has length 84 [2025-01-10 00:14:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:34,728 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 10390 transitions. [2025-01-10 00:14:34,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-01-10 00:14:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 10390 transitions. [2025-01-10 00:14:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-10 00:14:34,730 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:34,730 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:34,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 00:14:34,730 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:34,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:34,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1497079488, now seen corresponding path program 1 times [2025-01-10 00:14:34,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:34,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175969383] [2025-01-10 00:14:34,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:34,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:34,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-10 00:14:34,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-10 00:14:34,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:34,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:35,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:35,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175969383] [2025-01-10 00:14:35,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175969383] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:35,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:35,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:14:35,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040894111] [2025-01-10 00:14:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:35,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:14:35,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:35,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:14:35,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:14:35,065 INFO L87 Difference]: Start difference. First operand 5727 states and 10390 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-01-10 00:14:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:35,656 INFO L93 Difference]: Finished difference Result 5726 states and 10388 transitions. [2025-01-10 00:14:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:14:35,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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 84 [2025-01-10 00:14:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:35,668 INFO L225 Difference]: With dead ends: 5726 [2025-01-10 00:14:35,668 INFO L226 Difference]: Without dead ends: 5726 [2025-01-10 00:14:35,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:14:35,669 INFO L435 NwaCegarLoop]: 2963 mSDtfsCounter, 1 mSDsluCounter, 7836 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10799 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:35,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10799 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:14:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2025-01-10 00:14:36,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5726. [2025-01-10 00:14:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 3433 states have (on average 1.8572676958928052) internal successors, (6376), 5717 states have internal predecessors, (6376), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2025-01-10 00:14:36,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 10388 transitions. [2025-01-10 00:14:36,034 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 10388 transitions. Word has length 84 [2025-01-10 00:14:36,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:36,034 INFO L471 AbstractCegarLoop]: Abstraction has 5726 states and 10388 transitions. [2025-01-10 00:14:36,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2025-01-10 00:14:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 10388 transitions. [2025-01-10 00:14:36,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-10 00:14:36,034 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:36,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:36,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 00:14:36,035 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:36,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash 442361702, now seen corresponding path program 1 times [2025-01-10 00:14:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816621703] [2025-01-10 00:14:36,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:36,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:36,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-10 00:14:36,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-10 00:14:36,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:36,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:36,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:36,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816621703] [2025-01-10 00:14:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816621703] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:36,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:14:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173881571] [2025-01-10 00:14:36,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:36,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:14:36,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:36,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:14:36,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:14:36,202 INFO L87 Difference]: Start difference. First operand 5726 states and 10388 transitions. Second operand has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:14:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:38,970 INFO L93 Difference]: Finished difference Result 5744 states and 10414 transitions. [2025-01-10 00:14:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:14:38,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2025-01-10 00:14:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:38,988 INFO L225 Difference]: With dead ends: 5744 [2025-01-10 00:14:38,988 INFO L226 Difference]: Without dead ends: 5744 [2025-01-10 00:14:38,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 00:14:38,989 INFO L435 NwaCegarLoop]: 2948 mSDtfsCounter, 13 mSDsluCounter, 10014 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12962 SdHoareTripleChecker+Invalid, 4823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:38,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12962 Invalid, 4823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 4318 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-10 00:14:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2025-01-10 00:14:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5735. [2025-01-10 00:14:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3441 states have (on average 1.856146469049695) internal successors, (6387), 5724 states have internal predecessors, (6387), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2025-01-10 00:14:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10404 transitions. [2025-01-10 00:14:39,279 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10404 transitions. Word has length 92 [2025-01-10 00:14:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:39,279 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10404 transitions. [2025-01-10 00:14:39,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:14:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10404 transitions. [2025-01-10 00:14:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-10 00:14:39,280 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:39,280 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:39,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 00:14:39,280 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:39,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash 442361703, now seen corresponding path program 1 times [2025-01-10 00:14:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:39,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860456552] [2025-01-10 00:14:39,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:39,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:39,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-10 00:14:39,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-10 00:14:39,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:39,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:39,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860456552] [2025-01-10 00:14:39,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860456552] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:39,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:39,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:14:39,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220988055] [2025-01-10 00:14:39,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:39,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:14:39,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:39,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:14:39,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:14:39,720 INFO L87 Difference]: Start difference. First operand 5735 states and 10404 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:14:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:42,226 INFO L93 Difference]: Finished difference Result 5735 states and 10402 transitions. [2025-01-10 00:14:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:14:42,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2025-01-10 00:14:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:42,279 INFO L225 Difference]: With dead ends: 5735 [2025-01-10 00:14:42,279 INFO L226 Difference]: Without dead ends: 5735 [2025-01-10 00:14:42,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:14:42,281 INFO L435 NwaCegarLoop]: 2952 mSDtfsCounter, 8 mSDsluCounter, 8150 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11102 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:42,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11102 Invalid, 3712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:14:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2025-01-10 00:14:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 5735. [2025-01-10 00:14:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3441 states have (on average 1.8555652426620168) internal successors, (6385), 5724 states have internal predecessors, (6385), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2025-01-10 00:14:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10402 transitions. [2025-01-10 00:14:42,627 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10402 transitions. Word has length 92 [2025-01-10 00:14:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:42,627 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10402 transitions. [2025-01-10 00:14:42,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:14:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10402 transitions. [2025-01-10 00:14:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-10 00:14:42,628 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:42,628 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:42,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 00:14:42,628 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:42,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1240228798, now seen corresponding path program 1 times [2025-01-10 00:14:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:42,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15124561] [2025-01-10 00:14:42,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:42,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 00:14:42,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 00:14:42,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:42,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:43,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15124561] [2025-01-10 00:14:43,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15124561] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:14:43,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744837228] [2025-01-10 00:14:43,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:43,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:14:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:14:43,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:14:43,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:14:43,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 00:14:43,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 00:14:43,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:43,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:43,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-10 00:14:43,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:14:43,302 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-01-10 00:14:43,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-01-10 00:14:43,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:14:43,402 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 22 treesize of output 10 [2025-01-10 00:14:43,598 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:14:43,598 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:14:43,652 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 31 treesize of output 13 [2025-01-10 00:14:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:43,678 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:14:43,708 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_585 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_585) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-01-10 00:14:43,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744837228] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:14:43,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:14:43,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2025-01-10 00:14:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910071477] [2025-01-10 00:14:43,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:14:43,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 00:14:43,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:43,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 00:14:43,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=290, Unknown=1, NotChecked=34, Total=380 [2025-01-10 00:14:43,710 INFO L87 Difference]: Start difference. First operand 5735 states and 10402 transitions. Second operand has 19 states, 16 states have (on average 7.375) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:14:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:51,299 INFO L93 Difference]: Finished difference Result 5742 states and 10408 transitions. [2025-01-10 00:14:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:14:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 7.375) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 93 [2025-01-10 00:14:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:51,324 INFO L225 Difference]: With dead ends: 5742 [2025-01-10 00:14:51,325 INFO L226 Difference]: Without dead ends: 5742 [2025-01-10 00:14:51,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=427, Unknown=1, NotChecked=42, Total=552 [2025-01-10 00:14:51,326 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1881 mSDsluCounter, 20715 mSDsCounter, 0 mSdLazyCounter, 15216 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 23331 SdHoareTripleChecker+Invalid, 15732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 15216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:51,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 23331 Invalid, 15732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 15216 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2025-01-10 00:14:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2025-01-10 00:14:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5739. [2025-01-10 00:14:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 3445 states have (on average 1.8542815674891147) internal successors, (6388), 5727 states have internal predecessors, (6388), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:14:51,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 10402 transitions. [2025-01-10 00:14:51,744 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 10402 transitions. Word has length 93 [2025-01-10 00:14:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:51,745 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 10402 transitions. [2025-01-10 00:14:51,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 7.375) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:14:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 10402 transitions. [2025-01-10 00:14:51,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-10 00:14:51,746 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:51,746 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:51,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:14:51,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-10 00:14:51,950 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:51,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:51,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1240228797, now seen corresponding path program 1 times [2025-01-10 00:14:51,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:51,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370979563] [2025-01-10 00:14:51,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:51,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:51,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 00:14:51,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 00:14:51,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:51,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:52,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370979563] [2025-01-10 00:14:52,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370979563] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:14:52,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229834139] [2025-01-10 00:14:52,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:52,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:14:52,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:14:52,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:14:52,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:14:52,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 00:14:52,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 00:14:52,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:52,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:52,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-10 00:14:52,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:14:52,896 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:14:52,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-01-10 00:14:52,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-10 00:14:52,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:14:52,936 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 13 treesize of output 9 [2025-01-10 00:14:53,007 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 22 treesize of output 10 [2025-01-10 00:14:53,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-01-10 00:14:53,101 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:14:53,101 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2025-01-10 00:14:53,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2025-01-10 00:14:53,138 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 31 treesize of output 13 [2025-01-10 00:14:53,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-01-10 00:14:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:53,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:14:53,235 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_728 (Array Int Int)) (v_ArrVal_729 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_728) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_729 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 16))))) is different from false [2025-01-10 00:14:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229834139] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:14:53,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:14:53,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2025-01-10 00:14:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331782314] [2025-01-10 00:14:53,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:14:53,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 00:14:53,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:53,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 00:14:53,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=324, Unknown=1, NotChecked=36, Total=420 [2025-01-10 00:14:53,240 INFO L87 Difference]: Start difference. First operand 5739 states and 10402 transitions. Second operand has 18 states, 15 states have (on average 7.866666666666666) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:14:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:14:58,426 INFO L93 Difference]: Finished difference Result 5741 states and 10406 transitions. [2025-01-10 00:14:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:14:58,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.866666666666666) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 93 [2025-01-10 00:14:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:14:58,435 INFO L225 Difference]: With dead ends: 5741 [2025-01-10 00:14:58,435 INFO L226 Difference]: Without dead ends: 5741 [2025-01-10 00:14:58,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=463, Unknown=1, NotChecked=44, Total=600 [2025-01-10 00:14:58,436 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1887 mSDsluCounter, 15037 mSDsCounter, 0 mSdLazyCounter, 9562 mSolverCounterSat, 1024 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2391 SdHoareTripleChecker+Valid, 17656 SdHoareTripleChecker+Invalid, 10586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1024 IncrementalHoareTripleChecker+Valid, 9562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:14:58,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2391 Valid, 17656 Invalid, 10586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1024 Valid, 9562 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-01-10 00:14:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2025-01-10 00:14:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 5729. [2025-01-10 00:14:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 3437 states have (on average 1.8553971486761711) internal successors, (6377), 5719 states have internal predecessors, (6377), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2025-01-10 00:14:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 10389 transitions. [2025-01-10 00:14:58,723 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 10389 transitions. Word has length 93 [2025-01-10 00:14:58,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:14:58,723 INFO L471 AbstractCegarLoop]: Abstraction has 5729 states and 10389 transitions. [2025-01-10 00:14:58,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.866666666666666) internal successors, (118), 18 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:14:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 10389 transitions. [2025-01-10 00:14:58,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-10 00:14:58,724 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:14:58,724 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:14:58,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:14:58,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-10 00:14:58,928 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:14:58,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:14:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1438439681, now seen corresponding path program 1 times [2025-01-10 00:14:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:14:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74010360] [2025-01-10 00:14:58,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:14:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:14:58,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:14:58,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:14:58,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:14:58,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:14:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:14:59,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:14:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74010360] [2025-01-10 00:14:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74010360] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:14:59,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:14:59,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-10 00:14:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532643810] [2025-01-10 00:14:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:14:59,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 00:14:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:14:59,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 00:14:59,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-01-10 00:14:59,270 INFO L87 Difference]: Start difference. First operand 5729 states and 10389 transitions. Second operand has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:02,905 INFO L93 Difference]: Finished difference Result 5748 states and 10414 transitions. [2025-01-10 00:15:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 00:15:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2025-01-10 00:15:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:02,915 INFO L225 Difference]: With dead ends: 5748 [2025-01-10 00:15:02,915 INFO L226 Difference]: Without dead ends: 5748 [2025-01-10 00:15:02,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-01-10 00:15:02,916 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1906 mSDsluCounter, 12728 mSDsCounter, 0 mSdLazyCounter, 8406 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 15344 SdHoareTripleChecker+Invalid, 8920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 8406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:02,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 15344 Invalid, 8920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 8406 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-10 00:15:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2025-01-10 00:15:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 5744. [2025-01-10 00:15:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 3451 states have (on average 1.8527962909301652) internal successors, (6394), 5732 states have internal predecessors, (6394), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:15:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 10408 transitions. [2025-01-10 00:15:03,232 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 10408 transitions. Word has length 95 [2025-01-10 00:15:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:03,232 INFO L471 AbstractCegarLoop]: Abstraction has 5744 states and 10408 transitions. [2025-01-10 00:15:03,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 10408 transitions. [2025-01-10 00:15:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-10 00:15:03,233 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:03,233 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:03,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-10 00:15:03,233 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:03,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1438439682, now seen corresponding path program 1 times [2025-01-10 00:15:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:03,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202812359] [2025-01-10 00:15:03,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:03,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:03,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:15:03,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:15:03,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:03,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:03,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:03,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:03,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202812359] [2025-01-10 00:15:03,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202812359] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:15:03,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:15:03,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 00:15:03,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464940061] [2025-01-10 00:15:03,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:15:03,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 00:15:03,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:03,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 00:15:03,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:15:03,708 INFO L87 Difference]: Start difference. First operand 5744 states and 10408 transitions. Second operand has 11 states, 10 states have (on average 9.3) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:08,132 INFO L93 Difference]: Finished difference Result 5747 states and 10412 transitions. [2025-01-10 00:15:08,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:15:08,132 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2025-01-10 00:15:08,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:08,142 INFO L225 Difference]: With dead ends: 5747 [2025-01-10 00:15:08,142 INFO L226 Difference]: Without dead ends: 5747 [2025-01-10 00:15:08,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-01-10 00:15:08,143 INFO L435 NwaCegarLoop]: 2620 mSDtfsCounter, 1881 mSDsluCounter, 15141 mSDsCounter, 0 mSdLazyCounter, 8908 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 17761 SdHoareTripleChecker+Invalid, 9420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 8908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:08,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 17761 Invalid, 9420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 8908 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-01-10 00:15:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2025-01-10 00:15:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5744. [2025-01-10 00:15:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 3451 states have (on average 1.8522167487684729) internal successors, (6392), 5732 states have internal predecessors, (6392), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:15:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 10406 transitions. [2025-01-10 00:15:08,439 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 10406 transitions. Word has length 95 [2025-01-10 00:15:08,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:08,439 INFO L471 AbstractCegarLoop]: Abstraction has 5744 states and 10406 transitions. [2025-01-10 00:15:08,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 10406 transitions. [2025-01-10 00:15:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-10 00:15:08,439 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:08,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:08,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 00:15:08,440 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:08,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1948165797, now seen corresponding path program 1 times [2025-01-10 00:15:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767176047] [2025-01-10 00:15:08,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:08,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:08,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-10 00:15:08,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-10 00:15:08,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:08,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:08,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767176047] [2025-01-10 00:15:08,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767176047] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664068929] [2025-01-10 00:15:08,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:08,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:15:08,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:15:08,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:15:08,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:15:08,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-10 00:15:08,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-10 00:15:08,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:08,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:08,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 00:15:08,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:15:09,048 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-01-10 00:15:09,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-01-10 00:15:09,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:15:09,136 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 22 treesize of output 10 [2025-01-10 00:15:09,236 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:09,236 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:15:09,308 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:09,308 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:15:09,318 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 31 treesize of output 13 [2025-01-10 00:15:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:09,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:15:09,348 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1009) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-01-10 00:15:09,352 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1009) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-01-10 00:15:09,369 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int)) (v_ArrVal_1012 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1012))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1009)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-01-10 00:15:09,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664068929] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:09,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:15:09,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2025-01-10 00:15:09,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715796278] [2025-01-10 00:15:09,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:15:09,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 00:15:09,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:09,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 00:15:09,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=395, Unknown=3, NotChecked=126, Total=600 [2025-01-10 00:15:09,371 INFO L87 Difference]: Start difference. First operand 5744 states and 10406 transitions. Second operand has 22 states, 19 states have (on average 6.526315789473684) internal successors, (124), 21 states have internal predecessors, (124), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:15:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:15,677 INFO L93 Difference]: Finished difference Result 5746 states and 10410 transitions. [2025-01-10 00:15:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:15:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.526315789473684) internal successors, (124), 21 states have internal predecessors, (124), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 96 [2025-01-10 00:15:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:15,688 INFO L225 Difference]: With dead ends: 5746 [2025-01-10 00:15:15,688 INFO L226 Difference]: Without dead ends: 5746 [2025-01-10 00:15:15,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=512, Unknown=3, NotChecked=144, Total=756 [2025-01-10 00:15:15,689 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 1880 mSDsluCounter, 19096 mSDsCounter, 0 mSdLazyCounter, 13833 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 21711 SdHoareTripleChecker+Invalid, 14350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 13833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:15,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 21711 Invalid, 14350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 13833 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2025-01-10 00:15:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5746 states. [2025-01-10 00:15:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5746 to 5743. [2025-01-10 00:15:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3451 states have (on average 1.8516372066067806) internal successors, (6390), 5731 states have internal predecessors, (6390), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:15:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 10404 transitions. [2025-01-10 00:15:15,984 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 10404 transitions. Word has length 96 [2025-01-10 00:15:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:15,984 INFO L471 AbstractCegarLoop]: Abstraction has 5743 states and 10404 transitions. [2025-01-10 00:15:15,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.526315789473684) internal successors, (124), 21 states have internal predecessors, (124), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:15:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 10404 transitions. [2025-01-10 00:15:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-10 00:15:15,985 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:15,985 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:16,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 00:15:16,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:15:16,186 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:16,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:16,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1948165798, now seen corresponding path program 1 times [2025-01-10 00:15:16,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646505690] [2025-01-10 00:15:16,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:16,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-10 00:15:16,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-10 00:15:16,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:16,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:16,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646505690] [2025-01-10 00:15:16,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646505690] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111365933] [2025-01-10 00:15:16,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:16,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:15:16,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:15:16,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:15:16,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:15:17,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-10 00:15:17,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-10 00:15:17,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:17,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:17,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-01-10 00:15:17,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:15:17,135 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:15:17,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-01-10 00:15:17,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-10 00:15:17,159 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 13 treesize of output 9 [2025-01-10 00:15:17,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:15:17,214 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 22 treesize of output 10 [2025-01-10 00:15:17,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-01-10 00:15:17,285 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:17,285 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2025-01-10 00:15:17,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2025-01-10 00:15:17,343 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:17,343 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2025-01-10 00:15:17,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2025-01-10 00:15:17,362 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 31 treesize of output 13 [2025-01-10 00:15:17,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-01-10 00:15:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:17,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:15:17,455 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1164 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1164) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1163 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-01-10 00:15:17,486 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1170 (Array Int Int)) (v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1164 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1170))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1169) .cse0 v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1164) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1170 (Array Int Int)) (v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1169) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2025-01-10 00:15:17,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111365933] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:17,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:15:17,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2025-01-10 00:15:17,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378418719] [2025-01-10 00:15:17,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:15:17,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 00:15:17,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:17,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 00:15:17,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=505, Unknown=13, NotChecked=94, Total=702 [2025-01-10 00:15:17,488 INFO L87 Difference]: Start difference. First operand 5743 states and 10404 transitions. Second operand has 22 states, 19 states have (on average 9.578947368421053) internal successors, (182), 22 states have internal predecessors, (182), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:15:23,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:23,837 INFO L93 Difference]: Finished difference Result 5745 states and 10408 transitions. [2025-01-10 00:15:23,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:15:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 9.578947368421053) internal successors, (182), 22 states have internal predecessors, (182), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 96 [2025-01-10 00:15:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:23,845 INFO L225 Difference]: With dead ends: 5745 [2025-01-10 00:15:23,845 INFO L226 Difference]: Without dead ends: 5745 [2025-01-10 00:15:23,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=722, Unknown=13, NotChecked=114, Total=992 [2025-01-10 00:15:23,846 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 3722 mSDsluCounter, 19117 mSDsCounter, 0 mSdLazyCounter, 10913 mSolverCounterSat, 1025 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4226 SdHoareTripleChecker+Valid, 21732 SdHoareTripleChecker+Invalid, 11938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 10913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:23,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4226 Valid, 21732 Invalid, 11938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1025 Valid, 10913 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2025-01-10 00:15:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5745 states. [2025-01-10 00:15:24,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5745 to 5727. [2025-01-10 00:15:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 3437 states have (on average 1.8542333430317137) internal successors, (6373), 5717 states have internal predecessors, (6373), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2025-01-10 00:15:24,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 10385 transitions. [2025-01-10 00:15:24,146 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 10385 transitions. Word has length 96 [2025-01-10 00:15:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:24,147 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 10385 transitions. [2025-01-10 00:15:24,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 9.578947368421053) internal successors, (182), 22 states have internal predecessors, (182), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:15:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 10385 transitions. [2025-01-10 00:15:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-10 00:15:24,147 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:24,147 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:24,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 00:15:24,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-01-10 00:15:24,348 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:24,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:24,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1668470957, now seen corresponding path program 1 times [2025-01-10 00:15:24,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:24,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407433398] [2025-01-10 00:15:24,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:24,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:15:24,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:15:24,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:24,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:24,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407433398] [2025-01-10 00:15:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407433398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:15:24,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:15:24,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-10 00:15:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850956769] [2025-01-10 00:15:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:15:24,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 00:15:24,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:24,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 00:15:24,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-10 00:15:24,649 INFO L87 Difference]: Start difference. First operand 5727 states and 10385 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:28,505 INFO L93 Difference]: Finished difference Result 5752 states and 10416 transitions. [2025-01-10 00:15:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 00:15:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2025-01-10 00:15:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:28,513 INFO L225 Difference]: With dead ends: 5752 [2025-01-10 00:15:28,513 INFO L226 Difference]: Without dead ends: 5752 [2025-01-10 00:15:28,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2025-01-10 00:15:28,514 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1885 mSDsluCounter, 12706 mSDsCounter, 0 mSdLazyCounter, 8395 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 15324 SdHoareTripleChecker+Invalid, 8907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 8395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:28,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 15324 Invalid, 8907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 8395 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-01-10 00:15:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5752 states. [2025-01-10 00:15:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5752 to 5748. [2025-01-10 00:15:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3457 states have (on average 1.850159097483367) internal successors, (6396), 5736 states have internal predecessors, (6396), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:15:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 10410 transitions. [2025-01-10 00:15:28,902 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 10410 transitions. Word has length 98 [2025-01-10 00:15:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:28,902 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 10410 transitions. [2025-01-10 00:15:28,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 10410 transitions. [2025-01-10 00:15:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-10 00:15:28,902 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:28,902 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:28,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-10 00:15:28,903 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:28,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1668470958, now seen corresponding path program 1 times [2025-01-10 00:15:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:28,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980749340] [2025-01-10 00:15:28,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:28,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:15:28,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:15:28,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:28,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:29,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980749340] [2025-01-10 00:15:29,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980749340] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:15:29,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:15:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-10 00:15:29,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143867954] [2025-01-10 00:15:29,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:15:29,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 00:15:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:29,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 00:15:29,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-01-10 00:15:29,384 INFO L87 Difference]: Start difference. First operand 5748 states and 10410 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:15:33,067 INFO L93 Difference]: Finished difference Result 5751 states and 10414 transitions. [2025-01-10 00:15:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:15:33,068 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2025-01-10 00:15:33,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:15:33,074 INFO L225 Difference]: With dead ends: 5751 [2025-01-10 00:15:33,074 INFO L226 Difference]: Without dead ends: 5751 [2025-01-10 00:15:33,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2025-01-10 00:15:33,075 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1898 mSDsluCounter, 11597 mSDsCounter, 0 mSdLazyCounter, 6560 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 14216 SdHoareTripleChecker+Invalid, 7072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 6560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:15:33,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 14216 Invalid, 7072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 6560 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-10 00:15:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5751 states. [2025-01-10 00:15:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5751 to 5748. [2025-01-10 00:15:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3457 states have (on average 1.849580561180214) internal successors, (6394), 5736 states have internal predecessors, (6394), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2025-01-10 00:15:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 10408 transitions. [2025-01-10 00:15:33,368 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 10408 transitions. Word has length 98 [2025-01-10 00:15:33,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:15:33,368 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 10408 transitions. [2025-01-10 00:15:33,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 00:15:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 10408 transitions. [2025-01-10 00:15:33,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-10 00:15:33,369 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:15:33,369 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:15:33,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-10 00:15:33,369 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2025-01-10 00:15:33,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:15:33,372 INFO L85 PathProgramCache]: Analyzing trace with hash -85165943, now seen corresponding path program 1 times [2025-01-10 00:15:33,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:15:33,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556185649] [2025-01-10 00:15:33,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:33,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:15:33,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-10 00:15:33,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-10 00:15:33,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:33,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:15:33,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556185649] [2025-01-10 00:15:33,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556185649] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:33,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968349258] [2025-01-10 00:15:33,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:15:33,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:15:33,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:15:33,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:15:33,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 00:15:33,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-10 00:15:33,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-10 00:15:33,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:15:33,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:15:33,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-10 00:15:33,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:15:34,020 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-01-10 00:15:34,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-01-10 00:15:34,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:15:34,104 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 22 treesize of output 10 [2025-01-10 00:15:34,206 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:34,206 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:15:34,264 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:34,264 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:15:34,301 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:15:34,302 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2025-01-10 00:15:34,312 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 31 treesize of output 13 [2025-01-10 00:15:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:15:34,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:15:34,343 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1475) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-01-10 00:15:34,347 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1475) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-01-10 00:15:34,357 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (v_ArrVal_1474 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1474))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1475)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-01-10 00:15:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968349258] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:15:34,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:15:34,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2025-01-10 00:15:34,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240732360] [2025-01-10 00:15:34,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:15:34,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 00:15:34,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:15:34,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 00:15:34,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=536, Unknown=26, NotChecked=150, Total=812 [2025-01-10 00:15:34,436 INFO L87 Difference]: Start difference. First operand 5748 states and 10408 transitions. Second operand has 24 states, 21 states have (on average 6.190476190476191) internal successors, (130), 23 states have internal predecessors, (130), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)