./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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_SAX_test5-1.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 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:03:29,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:03:29,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:03:29,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:03:29,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:03:29,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:03:29,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:03:29,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:03:29,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:03:29,576 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:03:29,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:03:29,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:03:29,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:03:29,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:03:29,578 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:03:29,578 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:03:29,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:03:29,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:03:29,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:03:29,580 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 -> 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 [2025-02-08 08:03:29,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:03:29,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:03:29,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:03:29,813 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:03:29,813 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:03:29,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2025-02-08 08:03:30,997 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/126ac6d3e/d19ff5dddcef4557adb5ca90c734d79e/FLAG54e9e7b9c [2025-02-08 08:03:31,363 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:03:31,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2025-02-08 08:03:31,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/126ac6d3e/d19ff5dddcef4557adb5ca90c734d79e/FLAG54e9e7b9c [2025-02-08 08:03:31,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/126ac6d3e/d19ff5dddcef4557adb5ca90c734d79e [2025-02-08 08:03:31,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:03:31,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:03:31,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:03:31,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:03:31,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:03:31,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:03:31" (1/1) ... [2025-02-08 08:03:31,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a07662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:31, skipping insertion in model container [2025-02-08 08:03:31,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:03:31" (1/1) ... [2025-02-08 08:03:31,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:03:31,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,845 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,847 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,849 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,855 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,871 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,874 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,877 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,893 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,894 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,895 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,895 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:31,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:03:31,909 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:03:31,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:03:32,013 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:03:32,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32 WrapperNode [2025-02-08 08:03:32,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:03:32,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:03:32,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:03:32,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:03:32,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,100 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1990 [2025-02-08 08:03:32,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:03:32,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:03:32,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:03:32,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:03:32,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,179 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 24, 323]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 1, 82]. [2025-02-08 08:03:32,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:03:32,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:03:32,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:03:32,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:03:32,264 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (1/1) ... [2025-02-08 08:03:32,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:03:32,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:32,285 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) [2025-02-08 08:03:32,292 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 [2025-02-08 08:03:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 08:03:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 08:03:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 08:03:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 08:03:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 08:03:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 08:03:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:03:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:03:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:03:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 08:03:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:03:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:03:32,481 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:03:32,487 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:03:34,536 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-02-08 08:03:34,692 INFO L? ?]: Removed 1733 outVars from TransFormulas that were not future-live. [2025-02-08 08:03:34,692 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:03:34,810 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:03:34,810 INFO L337 CfgBuilder]: Removed 2 assume(true) statements. [2025-02-08 08:03:34,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:03:34 BoogieIcfgContainer [2025-02-08 08:03:34,811 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:03:34,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:03:34,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:03:34,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:03:34,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:03:31" (1/3) ... [2025-02-08 08:03:34,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cec95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:03:34, skipping insertion in model container [2025-02-08 08:03:34,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:32" (2/3) ... [2025-02-08 08:03:34,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cec95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:03:34, skipping insertion in model container [2025-02-08 08:03:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:03:34" (3/3) ... [2025-02-08 08:03:34,825 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-1.i [2025-02-08 08:03:34,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:03:34,848 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test5-1.i that has 6 procedures, 1755 locations, 1 initial locations, 49 loop locations, and 712 error locations. [2025-02-08 08:03:34,933 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:03:34,942 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;@463eeea0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:03:34,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2025-02-08 08:03:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 1745 states, 1021 states have (on average 2.020568070519099) internal successors, (2063), 1734 states have internal predecessors, (2063), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 08:03:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 08:03:34,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:34,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 08:03:34,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:34,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash 65704335, now seen corresponding path program 1 times [2025-02-08 08:03:34,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101240234] [2025-02-08 08:03:34,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:34,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:35,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:03:35,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:03:35,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:35,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:35,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:35,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101240234] [2025-02-08 08:03:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101240234] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712732383] [2025-02-08 08:03:35,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:35,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:35,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:35,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:35,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:35,170 INFO L87 Difference]: Start difference. First operand has 1745 states, 1021 states have (on average 2.020568070519099) internal successors, (2063), 1734 states have internal predecessors, (2063), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-08 08:03:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:35,456 INFO L93 Difference]: Finished difference Result 3432 states and 3950 transitions. [2025-02-08 08:03:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 08:03:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:35,475 INFO L225 Difference]: With dead ends: 3432 [2025-02-08 08:03:35,475 INFO L226 Difference]: Without dead ends: 3426 [2025-02-08 08:03:35,477 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 [2025-02-08 08:03:35,478 INFO L435 NwaCegarLoop]: 2223 mSDtfsCounter, 1941 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:35,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 4134 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:03:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2025-02-08 08:03:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 1722. [2025-02-08 08:03:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1012 states have (on average 1.934782608695652) internal successors, (1958), 1712 states have internal predecessors, (1958), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:35,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 1977 transitions. [2025-02-08 08:03:35,562 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 1977 transitions. Word has length 4 [2025-02-08 08:03:35,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:35,562 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 1977 transitions. [2025-02-08 08:03:35,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-08 08:03:35,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 1977 transitions. [2025-02-08 08:03:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 08:03:35,563 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:35,563 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 08:03:35,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:03:35,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr709REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:35,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash 67385149, now seen corresponding path program 1 times [2025-02-08 08:03:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:35,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811945553] [2025-02-08 08:03:35,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:35,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:03:35,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:03:35,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:35,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:35,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:35,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811945553] [2025-02-08 08:03:35,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811945553] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:35,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:35,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:35,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8582093] [2025-02-08 08:03:35,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:35,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:35,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:35,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:35,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:35,623 INFO L87 Difference]: Start difference. First operand 1722 states and 1977 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 08:03:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:36,465 INFO L93 Difference]: Finished difference Result 1630 states and 1885 transitions. [2025-02-08 08:03:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 08:03:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:36,472 INFO L225 Difference]: With dead ends: 1630 [2025-02-08 08:03:36,472 INFO L226 Difference]: Without dead ends: 1630 [2025-02-08 08:03:36,474 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 [2025-02-08 08:03:36,475 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 1744 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:36,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 1129 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 08:03:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2025-02-08 08:03:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1630. [2025-02-08 08:03:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1012 states have (on average 1.8438735177865613) internal successors, (1866), 1620 states have internal predecessors, (1866), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:36,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 1885 transitions. [2025-02-08 08:03:36,511 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 1885 transitions. Word has length 4 [2025-02-08 08:03:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:36,511 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 1885 transitions. [2025-02-08 08:03:36,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 08:03:36,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 1885 transitions. [2025-02-08 08:03:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 08:03:36,512 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:36,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 08:03:36,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:03:36,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr710REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:36,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash 67385150, now seen corresponding path program 1 times [2025-02-08 08:03:36,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:36,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029913918] [2025-02-08 08:03:36,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:36,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:36,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:03:36,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:03:36,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:36,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:36,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:36,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029913918] [2025-02-08 08:03:36,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029913918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:36,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:36,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:36,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906655310] [2025-02-08 08:03:36,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:36,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:36,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:36,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:36,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:36,608 INFO L87 Difference]: Start difference. First operand 1630 states and 1885 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 08:03:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:37,718 INFO L93 Difference]: Finished difference Result 2372 states and 2786 transitions. [2025-02-08 08:03:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 08:03:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:37,725 INFO L225 Difference]: With dead ends: 2372 [2025-02-08 08:03:37,725 INFO L226 Difference]: Without dead ends: 2372 [2025-02-08 08:03:37,725 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 [2025-02-08 08:03:37,726 INFO L435 NwaCegarLoop]: 1483 mSDtfsCounter, 1222 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:37,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2366 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 08:03:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2025-02-08 08:03:37,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1898. [2025-02-08 08:03:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1290 states have (on average 1.817829457364341) internal successors, (2345), 1888 states have internal predecessors, (2345), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2364 transitions. [2025-02-08 08:03:37,772 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2364 transitions. Word has length 4 [2025-02-08 08:03:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 1898 states and 2364 transitions. [2025-02-08 08:03:37,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 08:03:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2364 transitions. [2025-02-08 08:03:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 08:03:37,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:37,773 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:37,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:03:37,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr705REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:37,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1665836906, now seen corresponding path program 1 times [2025-02-08 08:03:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:37,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884908959] [2025-02-08 08:03:37,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:37,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:37,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:03:37,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:03:37,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:37,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:37,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:37,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884908959] [2025-02-08 08:03:37,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884908959] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:37,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:37,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:37,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233476508] [2025-02-08 08:03:37,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:37,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:37,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:37,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:37,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:37,887 INFO L87 Difference]: Start difference. First operand 1898 states and 2364 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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) [2025-02-08 08:03:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:39,122 INFO L93 Difference]: Finished difference Result 1924 states and 2417 transitions. [2025-02-08 08:03:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:39,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 [2025-02-08 08:03:39,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:39,129 INFO L225 Difference]: With dead ends: 1924 [2025-02-08 08:03:39,130 INFO L226 Difference]: Without dead ends: 1924 [2025-02-08 08:03:39,130 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 [2025-02-08 08:03:39,132 INFO L435 NwaCegarLoop]: 1096 mSDtfsCounter, 2011 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:39,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 2062 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-08 08:03:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2025-02-08 08:03:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1875. [2025-02-08 08:03:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1290 states have (on average 1.8) internal successors, (2322), 1865 states have internal predecessors, (2322), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2341 transitions. [2025-02-08 08:03:39,169 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2341 transitions. Word has length 10 [2025-02-08 08:03:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:39,169 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2341 transitions. [2025-02-08 08:03:39,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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) [2025-02-08 08:03:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2341 transitions. [2025-02-08 08:03:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 08:03:39,170 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:39,170 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:39,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:03:39,170 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr706REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:39,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1665836905, now seen corresponding path program 1 times [2025-02-08 08:03:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:39,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018736709] [2025-02-08 08:03:39,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:39,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:03:39,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:03:39,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:39,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:39,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018736709] [2025-02-08 08:03:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018736709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:39,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:39,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:39,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968008955] [2025-02-08 08:03:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:39,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:39,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:39,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:39,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:39,240 INFO L87 Difference]: Start difference. First operand 1875 states and 2341 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2025-02-08 08:03:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:39,389 INFO L93 Difference]: Finished difference Result 1800 states and 2238 transitions. [2025-02-08 08:03:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:39,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2025-02-08 08:03:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:39,394 INFO L225 Difference]: With dead ends: 1800 [2025-02-08 08:03:39,394 INFO L226 Difference]: Without dead ends: 1800 [2025-02-08 08:03:39,394 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 [2025-02-08 08:03:39,395 INFO L435 NwaCegarLoop]: 1682 mSDtfsCounter, 60 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:39,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3311 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:03:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2025-02-08 08:03:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2025-02-08 08:03:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1227 states have (on average 1.8084759576202118) internal successors, (2219), 1790 states have internal predecessors, (2219), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2238 transitions. [2025-02-08 08:03:39,416 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2238 transitions. Word has length 10 [2025-02-08 08:03:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:39,416 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2238 transitions. [2025-02-08 08:03:39,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2025-02-08 08:03:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2238 transitions. [2025-02-08 08:03:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 08:03:39,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:39,417 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:39,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:03:39,417 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr682REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:39,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash -101459512, now seen corresponding path program 1 times [2025-02-08 08:03:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:39,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483992697] [2025-02-08 08:03:39,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:39,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:39,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 08:03:39,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 08:03:39,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:39,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:39,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:39,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483992697] [2025-02-08 08:03:39,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483992697] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:39,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:39,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:39,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365330941] [2025-02-08 08:03:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:39,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:39,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:39,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:39,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:39,470 INFO L87 Difference]: Start difference. First operand 1800 states and 2238 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-08 08:03:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:39,663 INFO L93 Difference]: Finished difference Result 1782 states and 2213 transitions. [2025-02-08 08:03:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:39,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2025-02-08 08:03:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:39,668 INFO L225 Difference]: With dead ends: 1782 [2025-02-08 08:03:39,668 INFO L226 Difference]: Without dead ends: 1782 [2025-02-08 08:03:39,668 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 [2025-02-08 08:03:39,669 INFO L435 NwaCegarLoop]: 1647 mSDtfsCounter, 41 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 4913 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:39,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 4913 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:03:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2025-02-08 08:03:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1779. [2025-02-08 08:03:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1213 states have (on average 1.806265457543281) internal successors, (2191), 1769 states have internal predecessors, (2191), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2210 transitions. [2025-02-08 08:03:39,690 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2210 transitions. Word has length 11 [2025-02-08 08:03:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:39,690 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2210 transitions. [2025-02-08 08:03:39,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-08 08:03:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2210 transitions. [2025-02-08 08:03:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-08 08:03:39,690 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:39,690 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] [2025-02-08 08:03:39,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:03:39,691 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr668REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:39,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 374367070, now seen corresponding path program 1 times [2025-02-08 08:03:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:39,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364341548] [2025-02-08 08:03:39,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:39,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:03:39,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:03:39,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:39,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:39,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:39,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364341548] [2025-02-08 08:03:39,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364341548] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:39,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:39,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:39,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198127296] [2025-02-08 08:03:39,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:39,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:39,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:39,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:39,859 INFO L87 Difference]: Start difference. First operand 1779 states and 2210 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-02-08 08:03:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:41,036 INFO L93 Difference]: Finished difference Result 2298 states and 2704 transitions. [2025-02-08 08:03:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:41,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2025-02-08 08:03:41,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:41,041 INFO L225 Difference]: With dead ends: 2298 [2025-02-08 08:03:41,041 INFO L226 Difference]: Without dead ends: 2298 [2025-02-08 08:03:41,041 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 [2025-02-08 08:03:41,043 INFO L435 NwaCegarLoop]: 1376 mSDtfsCounter, 1227 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:41,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3236 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 08:03:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2025-02-08 08:03:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 1775. [2025-02-08 08:03:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1213 states have (on average 1.8029678483099754) internal successors, (2187), 1765 states have internal predecessors, (2187), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2206 transitions. [2025-02-08 08:03:41,066 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2206 transitions. Word has length 25 [2025-02-08 08:03:41,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:41,067 INFO L471 AbstractCegarLoop]: Abstraction has 1775 states and 2206 transitions. [2025-02-08 08:03:41,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-02-08 08:03:41,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2206 transitions. [2025-02-08 08:03:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-08 08:03:41,069 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:41,069 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] [2025-02-08 08:03:41,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:03:41,069 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr653REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:41,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1719315381, now seen corresponding path program 1 times [2025-02-08 08:03:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:41,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433447478] [2025-02-08 08:03:41,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:41,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:41,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-08 08:03:41,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-08 08:03:41,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:41,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:41,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:41,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433447478] [2025-02-08 08:03:41,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433447478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:41,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:41,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:41,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395212799] [2025-02-08 08:03:41,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:41,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:41,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:41,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:41,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:41,172 INFO L87 Difference]: Start difference. First operand 1775 states and 2206 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-08 08:03:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:41,297 INFO L93 Difference]: Finished difference Result 1775 states and 2202 transitions. [2025-02-08 08:03:41,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:03:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2025-02-08 08:03:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:41,301 INFO L225 Difference]: With dead ends: 1775 [2025-02-08 08:03:41,301 INFO L226 Difference]: Without dead ends: 1775 [2025-02-08 08:03:41,302 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 [2025-02-08 08:03:41,302 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 21 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:41,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4895 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:03:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2025-02-08 08:03:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1775. [2025-02-08 08:03:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1213 states have (on average 1.7996702390766695) internal successors, (2183), 1765 states have internal predecessors, (2183), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2202 transitions. [2025-02-08 08:03:41,325 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2202 transitions. Word has length 60 [2025-02-08 08:03:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:41,325 INFO L471 AbstractCegarLoop]: Abstraction has 1775 states and 2202 transitions. [2025-02-08 08:03:41,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-08 08:03:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2202 transitions. [2025-02-08 08:03:41,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-08 08:03:41,328 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:41,328 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] [2025-02-08 08:03:41,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:03:41,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr653REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:41,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2035829357, now seen corresponding path program 1 times [2025-02-08 08:03:41,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:41,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147945514] [2025-02-08 08:03:41,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:41,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:41,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-08 08:03:41,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 08:03:41,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:41,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147945514] [2025-02-08 08:03:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147945514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208849736] [2025-02-08 08:03:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:41,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:41,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:41,447 INFO L87 Difference]: Start difference. First operand 1775 states and 2202 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 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) [2025-02-08 08:03:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:41,554 INFO L93 Difference]: Finished difference Result 1867 states and 2321 transitions. [2025-02-08 08:03:41,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:41,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 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 [2025-02-08 08:03:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:41,558 INFO L225 Difference]: With dead ends: 1867 [2025-02-08 08:03:41,558 INFO L226 Difference]: Without dead ends: 1867 [2025-02-08 08:03:41,559 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 [2025-02-08 08:03:41,559 INFO L435 NwaCegarLoop]: 1656 mSDtfsCounter, 54 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:41,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3285 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:03:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2025-02-08 08:03:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1867. [2025-02-08 08:03:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1305 states have (on average 1.763984674329502) internal successors, (2302), 1857 states have internal predecessors, (2302), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2321 transitions. [2025-02-08 08:03:41,594 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2321 transitions. Word has length 68 [2025-02-08 08:03:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:41,595 INFO L471 AbstractCegarLoop]: Abstraction has 1867 states and 2321 transitions. [2025-02-08 08:03:41,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 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) [2025-02-08 08:03:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2321 transitions. [2025-02-08 08:03:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-08 08:03:41,596 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:41,597 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:41,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:03:41,597 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr624REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:41,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:41,598 INFO L85 PathProgramCache]: Analyzing trace with hash 158605529, now seen corresponding path program 1 times [2025-02-08 08:03:41,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:41,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893567918] [2025-02-08 08:03:41,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:41,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:41,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-08 08:03:41,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-08 08:03:41,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:41,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:42,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:42,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893567918] [2025-02-08 08:03:42,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893567918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:42,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:42,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:03:42,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495665161] [2025-02-08 08:03:42,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:42,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:03:42,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:42,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:03:42,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:42,043 INFO L87 Difference]: Start difference. First operand 1867 states and 2321 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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) [2025-02-08 08:03:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:43,198 INFO L93 Difference]: Finished difference Result 1783 states and 2237 transitions. [2025-02-08 08:03:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:03:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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 71 [2025-02-08 08:03:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:43,203 INFO L225 Difference]: With dead ends: 1783 [2025-02-08 08:03:43,203 INFO L226 Difference]: Without dead ends: 1783 [2025-02-08 08:03:43,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:43,203 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 3059 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:43,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 1495 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 08:03:43,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2025-02-08 08:03:43,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1505. [2025-02-08 08:03:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1027 states have (on average 1.6835443037974684) internal successors, (1729), 1495 states have internal predecessors, (1729), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1748 transitions. [2025-02-08 08:03:43,217 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1748 transitions. Word has length 71 [2025-02-08 08:03:43,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:43,217 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1748 transitions. [2025-02-08 08:03:43,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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) [2025-02-08 08:03:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1748 transitions. [2025-02-08 08:03:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 08:03:43,218 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:43,218 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] [2025-02-08 08:03:43,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:03:43,218 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr617REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:43,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:43,219 INFO L85 PathProgramCache]: Analyzing trace with hash 774032120, now seen corresponding path program 1 times [2025-02-08 08:03:43,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:43,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926714902] [2025-02-08 08:03:43,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:43,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:43,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 08:03:43,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 08:03:43,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:43,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:43,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:43,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926714902] [2025-02-08 08:03:43,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926714902] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:43,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:43,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:43,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986805718] [2025-02-08 08:03:43,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:43,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:03:43,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:43,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:03:43,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:43,420 INFO L87 Difference]: Start difference. First operand 1505 states and 1748 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 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) [2025-02-08 08:03:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:44,355 INFO L93 Difference]: Finished difference Result 1504 states and 1747 transitions. [2025-02-08 08:03:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:03:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 [2025-02-08 08:03:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:44,359 INFO L225 Difference]: With dead ends: 1504 [2025-02-08 08:03:44,359 INFO L226 Difference]: Without dead ends: 1504 [2025-02-08 08:03:44,359 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 [2025-02-08 08:03:44,359 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 2 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:44,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4561 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 08:03:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2025-02-08 08:03:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1504. [2025-02-08 08:03:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1027 states have (on average 1.6825705939629991) internal successors, (1728), 1494 states have internal predecessors, (1728), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:44,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1747 transitions. [2025-02-08 08:03:44,371 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1747 transitions. Word has length 76 [2025-02-08 08:03:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:44,371 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1747 transitions. [2025-02-08 08:03:44,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-08 08:03:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1747 transitions. [2025-02-08 08:03:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 08:03:44,372 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:44,372 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] [2025-02-08 08:03:44,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:03:44,372 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:44,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash 774032121, now seen corresponding path program 1 times [2025-02-08 08:03:44,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:44,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882613823] [2025-02-08 08:03:44,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:44,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:44,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 08:03:44,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 08:03:44,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:44,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:44,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:44,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882613823] [2025-02-08 08:03:44,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882613823] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:44,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:44,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:44,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557017494] [2025-02-08 08:03:44,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:44,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:03:44,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:44,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:03:44,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:44,802 INFO L87 Difference]: Start difference. First operand 1504 states and 1747 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 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) [2025-02-08 08:03:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:45,865 INFO L93 Difference]: Finished difference Result 1503 states and 1746 transitions. [2025-02-08 08:03:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:03:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 [2025-02-08 08:03:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:45,869 INFO L225 Difference]: With dead ends: 1503 [2025-02-08 08:03:45,869 INFO L226 Difference]: Without dead ends: 1503 [2025-02-08 08:03:45,869 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 [2025-02-08 08:03:45,870 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 1 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:45,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4583 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-08 08:03:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2025-02-08 08:03:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1503. [2025-02-08 08:03:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1026 states have (on average 1.6832358674463939) internal successors, (1727), 1493 states have internal predecessors, (1727), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1746 transitions. [2025-02-08 08:03:45,882 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1746 transitions. Word has length 76 [2025-02-08 08:03:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:45,882 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1746 transitions. [2025-02-08 08:03:45,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-08 08:03:45,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1746 transitions. [2025-02-08 08:03:45,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 08:03:45,883 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:45,883 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] [2025-02-08 08:03:45,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:03:45,883 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:45,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash 729560853, now seen corresponding path program 1 times [2025-02-08 08:03:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:45,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990264441] [2025-02-08 08:03:45,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:45,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:45,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 08:03:45,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 08:03:45,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:45,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:46,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990264441] [2025-02-08 08:03:46,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990264441] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:46,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:46,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:03:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425178649] [2025-02-08 08:03:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:46,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:03:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:46,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:03:46,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:03:46,042 INFO L87 Difference]: Start difference. First operand 1503 states and 1746 transitions. Second operand has 7 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-08 08:03:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:47,322 INFO L93 Difference]: Finished difference Result 1515 states and 1764 transitions. [2025-02-08 08:03:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:03:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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 84 [2025-02-08 08:03:47,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:47,327 INFO L225 Difference]: With dead ends: 1515 [2025-02-08 08:03:47,328 INFO L226 Difference]: Without dead ends: 1515 [2025-02-08 08:03:47,328 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 [2025-02-08 08:03:47,328 INFO L435 NwaCegarLoop]: 1552 mSDtfsCounter, 11 mSDsluCounter, 5628 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7180 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:47,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7180 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-08 08:03:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2025-02-08 08:03:47,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1509. [2025-02-08 08:03:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1031 states have (on average 1.6818622696411252) internal successors, (1734), 1498 states have internal predecessors, (1734), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2025-02-08 08:03:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1759 transitions. [2025-02-08 08:03:47,345 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1759 transitions. Word has length 84 [2025-02-08 08:03:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:47,345 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1759 transitions. [2025-02-08 08:03:47,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-08 08:03:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1759 transitions. [2025-02-08 08:03:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 08:03:47,347 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:47,347 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] [2025-02-08 08:03:47,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:03:47,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:47,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash 729560854, now seen corresponding path program 1 times [2025-02-08 08:03:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982062255] [2025-02-08 08:03:47,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:47,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 08:03:47,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 08:03:47,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:47,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982062255] [2025-02-08 08:03:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982062255] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:47,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:47,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:03:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256060633] [2025-02-08 08:03:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:47,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:03:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:47,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:03:47,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:47,729 INFO L87 Difference]: Start difference. First operand 1509 states and 1759 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-08 08:03:48,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:48,993 INFO L93 Difference]: Finished difference Result 1509 states and 1758 transitions. [2025-02-08 08:03:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:03:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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 84 [2025-02-08 08:03:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:49,000 INFO L225 Difference]: With dead ends: 1509 [2025-02-08 08:03:49,000 INFO L226 Difference]: Without dead ends: 1509 [2025-02-08 08:03:49,000 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 [2025-02-08 08:03:49,001 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 6 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:49,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5892 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-08 08:03:49,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2025-02-08 08:03:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2025-02-08 08:03:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1031 states have (on average 1.6808923375363725) internal successors, (1733), 1498 states have internal predecessors, (1733), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2025-02-08 08:03:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1758 transitions. [2025-02-08 08:03:49,026 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1758 transitions. Word has length 84 [2025-02-08 08:03:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:49,026 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1758 transitions. [2025-02-08 08:03:49,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-02-08 08:03:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1758 transitions. [2025-02-08 08:03:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-08 08:03:49,026 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:49,026 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] [2025-02-08 08:03:49,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 08:03:49,027 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:49,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:49,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1823305232, now seen corresponding path program 1 times [2025-02-08 08:03:49,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063326185] [2025-02-08 08:03:49,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:49,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 08:03:49,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 08:03:49,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:49,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:49,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063326185] [2025-02-08 08:03:49,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063326185] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:03:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516370687] [2025-02-08 08:03:49,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:49,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:49,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:49,393 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) [2025-02-08 08:03:49,395 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 [2025-02-08 08:03:49,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 08:03:49,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 08:03:49,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:49,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:49,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-08 08:03:49,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:49,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:03:49,753 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:03:49,753 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 [2025-02-08 08:03:49,768 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 [2025-02-08 08:03:49,841 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:03:49,841 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 [2025-02-08 08:03:49,878 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 [2025-02-08 08:03:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:49,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:03:49,949 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2025-02-08 08:03:49,949 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 21 treesize of output 20 [2025-02-08 08:03:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516370687] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:03:49,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:03:49,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 13 [2025-02-08 08:03:49,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890130554] [2025-02-08 08:03:49,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:03:49,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 08:03:49,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:49,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 08:03:49,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=171, Unknown=4, NotChecked=0, Total=210 [2025-02-08 08:03:49,989 INFO L87 Difference]: Start difference. First operand 1509 states and 1758 transitions. Second operand has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:03:52,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:52,947 INFO L93 Difference]: Finished difference Result 1508 states and 1757 transitions. [2025-02-08 08:03:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:03:52,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-08 08:03:52,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:52,952 INFO L225 Difference]: With dead ends: 1508 [2025-02-08 08:03:52,952 INFO L226 Difference]: Without dead ends: 1508 [2025-02-08 08:03:52,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=374, Unknown=4, NotChecked=0, Total=462 [2025-02-08 08:03:52,953 INFO L435 NwaCegarLoop]: 992 mSDtfsCounter, 1548 mSDsluCounter, 8745 mSDsCounter, 0 mSdLazyCounter, 6438 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 9737 SdHoareTripleChecker+Invalid, 6464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:52,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 9737 Invalid, 6464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6438 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-08 08:03:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2025-02-08 08:03:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1508. [2025-02-08 08:03:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1031 states have (on average 1.6799224054316197) internal successors, (1732), 1497 states have internal predecessors, (1732), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2025-02-08 08:03:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1757 transitions. [2025-02-08 08:03:52,971 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1757 transitions. Word has length 85 [2025-02-08 08:03:52,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:52,971 INFO L471 AbstractCegarLoop]: Abstraction has 1508 states and 1757 transitions. [2025-02-08 08:03:52,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:03:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1757 transitions. [2025-02-08 08:03:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-08 08:03:52,972 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:52,972 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] [2025-02-08 08:03:52,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:03:53,172 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,SelfDestructingSolverStorable14 [2025-02-08 08:03:53,173 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:53,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1823305231, now seen corresponding path program 1 times [2025-02-08 08:03:53,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:53,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721339752] [2025-02-08 08:03:53,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:53,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:53,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 08:03:53,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 08:03:53,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:53,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:53,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:53,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721339752] [2025-02-08 08:03:53,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721339752] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:03:53,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358621282] [2025-02-08 08:03:53,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:53,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:53,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:53,731 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) [2025-02-08 08:03:53,735 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 [2025-02-08 08:03:53,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 08:03:53,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 08:03:53,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:53,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:53,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-08 08:03:53,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:53,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:03:53,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2025-02-08 08:03:54,010 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:03:54,010 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 [2025-02-08 08:03:54,022 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 [2025-02-08 08:03:54,028 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 [2025-02-08 08:03:54,081 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 [2025-02-08 08:03:54,085 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 [2025-02-08 08:03:54,176 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:03:54,176 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 [2025-02-08 08:03:54,183 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 [2025-02-08 08:03:54,202 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 [2025-02-08 08:03:54,207 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 [2025-02-08 08:03:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:54,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:03:54,283 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_667 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_667) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 16))) (forall ((v_ArrVal_667 (Array Int Int)) (v_ArrVal_666 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_667) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_666) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-02-08 08:03:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358621282] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:03:54,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:03:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 14 [2025-02-08 08:03:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713868855] [2025-02-08 08:03:54,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:03:54,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:03:54,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:54,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:03:54,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=225, Unknown=1, NotChecked=30, Total=306 [2025-02-08 08:03:54,287 INFO L87 Difference]: Start difference. First operand 1508 states and 1757 transitions. Second operand has 15 states, 12 states have (on average 10.583333333333334) internal successors, (127), 15 states have internal predecessors, (127), 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) [2025-02-08 08:03:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:56,843 INFO L93 Difference]: Finished difference Result 1515 states and 1764 transitions. [2025-02-08 08:03:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:03:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 10.583333333333334) internal successors, (127), 15 states have internal predecessors, (127), 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 85 [2025-02-08 08:03:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:56,852 INFO L225 Difference]: With dead ends: 1515 [2025-02-08 08:03:56,852 INFO L226 Difference]: Without dead ends: 1515 [2025-02-08 08:03:56,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=345, Unknown=1, NotChecked=38, Total=462 [2025-02-08 08:03:56,855 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 1543 mSDsluCounter, 4959 mSDsCounter, 0 mSdLazyCounter, 5417 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 5956 SdHoareTripleChecker+Invalid, 5456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:56,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 5956 Invalid, 5456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 5417 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 08:03:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2025-02-08 08:03:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1506. [2025-02-08 08:03:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1030 states have (on average 1.6796116504854368) internal successors, (1730), 1495 states have internal predecessors, (1730), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:03:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1749 transitions. [2025-02-08 08:03:56,873 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1749 transitions. Word has length 85 [2025-02-08 08:03:56,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:56,874 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 1749 transitions. [2025-02-08 08:03:56,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 10.583333333333334) internal successors, (127), 15 states have internal predecessors, (127), 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) [2025-02-08 08:03:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1749 transitions. [2025-02-08 08:03:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-08 08:03:56,874 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:56,874 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] [2025-02-08 08:03:56,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:57,079 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,SelfDestructingSolverStorable15 [2025-02-08 08:03:57,079 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr609REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1814571754, now seen corresponding path program 1 times [2025-02-08 08:03:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125523773] [2025-02-08 08:03:57,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:57,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:57,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 08:03:57,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 08:03:57,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:57,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:57,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:03:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125523773] [2025-02-08 08:03:57,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125523773] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:57,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:57,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-08 08:03:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56563115] [2025-02-08 08:03:57,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:57,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 08:03:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:03:57,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 08:03:57,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-02-08 08:03:57,461 INFO L87 Difference]: Start difference. First operand 1506 states and 1749 transitions. Second operand has 14 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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) [2025-02-08 08:03:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:59,574 INFO L93 Difference]: Finished difference Result 1519 states and 1768 transitions. [2025-02-08 08:03:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:03:59,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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 87 [2025-02-08 08:03:59,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:59,577 INFO L225 Difference]: With dead ends: 1519 [2025-02-08 08:03:59,577 INFO L226 Difference]: Without dead ends: 1519 [2025-02-08 08:03:59,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:03:59,578 INFO L435 NwaCegarLoop]: 991 mSDtfsCounter, 1570 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 7823 SdHoareTripleChecker+Invalid, 5197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:59,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 7823 Invalid, 5197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5171 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 08:03:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2025-02-08 08:03:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1515. [2025-02-08 08:03:59,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1038 states have (on average 1.676300578034682) internal successors, (1740), 1503 states have internal predecessors, (1740), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:03:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1760 transitions. [2025-02-08 08:03:59,596 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1760 transitions. Word has length 87 [2025-02-08 08:03:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:59,597 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1760 transitions. [2025-02-08 08:03:59,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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) [2025-02-08 08:03:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1760 transitions. [2025-02-08 08:03:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-08 08:03:59,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:59,599 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] [2025-02-08 08:03:59,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 08:03:59,599 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:03:59,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1814571755, now seen corresponding path program 1 times [2025-02-08 08:03:59,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:03:59,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728055483] [2025-02-08 08:03:59,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:59,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:03:59,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 08:03:59,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 08:03:59,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:59,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:00,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:00,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728055483] [2025-02-08 08:04:00,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728055483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:00,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:00,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 08:04:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091842284] [2025-02-08 08:04:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:00,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:04:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:00,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:04:00,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:04:00,035 INFO L87 Difference]: Start difference. First operand 1515 states and 1760 transitions. Second operand has 11 states, 10 states have (on average 8.5) internal successors, (85), 11 states have internal predecessors, (85), 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) [2025-02-08 08:04:02,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:02,182 INFO L93 Difference]: Finished difference Result 1518 states and 1767 transitions. [2025-02-08 08:04:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:04:02,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 11 states have internal predecessors, (85), 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 87 [2025-02-08 08:04:02,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:02,185 INFO L225 Difference]: With dead ends: 1518 [2025-02-08 08:04:02,185 INFO L226 Difference]: Without dead ends: 1518 [2025-02-08 08:04:02,185 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 [2025-02-08 08:04:02,186 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 1548 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 6157 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:02,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 6157 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 08:04:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2025-02-08 08:04:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1515. [2025-02-08 08:04:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1038 states have (on average 1.6753371868978806) internal successors, (1739), 1503 states have internal predecessors, (1739), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1759 transitions. [2025-02-08 08:04:02,207 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1759 transitions. Word has length 87 [2025-02-08 08:04:02,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:02,207 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1759 transitions. [2025-02-08 08:04:02,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 11 states have internal predecessors, (85), 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) [2025-02-08 08:04:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1759 transitions. [2025-02-08 08:04:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-08 08:04:02,208 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:02,208 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] [2025-02-08 08:04:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 08:04:02,209 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr609REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:02,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 366943791, now seen corresponding path program 1 times [2025-02-08 08:04:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:02,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427786008] [2025-02-08 08:04:02,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:02,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 08:04:02,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 08:04:02,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:02,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:02,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:02,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427786008] [2025-02-08 08:04:02,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427786008] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:02,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813686133] [2025-02-08 08:04:02,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:02,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:02,602 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) [2025-02-08 08:04:02,603 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 [2025-02-08 08:04:02,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 08:04:02,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 08:04:02,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:02,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:02,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 08:04:02,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:02,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:02,927 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:02,928 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 [2025-02-08 08:04:02,941 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 [2025-02-08 08:04:03,030 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:03,030 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 [2025-02-08 08:04:03,099 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:03,099 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 [2025-02-08 08:04:03,109 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 [2025-02-08 08:04:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:03,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:03,119 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_924 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_924) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-02-08 08:04:03,172 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2025-02-08 08:04:03,173 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 33 treesize of output 32 [2025-02-08 08:04:03,177 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_924 (Array Int Int)) (v_ArrVal_927 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_927))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_924)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem50#1.base|)) is different from false [2025-02-08 08:04:03,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813686133] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:03,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:03,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 16 [2025-02-08 08:04:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257691482] [2025-02-08 08:04:03,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:04:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:03,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:04:03,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=256, Unknown=4, NotChecked=66, Total=380 [2025-02-08 08:04:03,179 INFO L87 Difference]: Start difference. First operand 1515 states and 1759 transitions. Second operand has 17 states, 15 states have (on average 8.8) internal successors, (132), 17 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:05,883 INFO L93 Difference]: Finished difference Result 1517 states and 1766 transitions. [2025-02-08 08:04:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:04:05,884 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.8) internal successors, (132), 17 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2025-02-08 08:04:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:05,886 INFO L225 Difference]: With dead ends: 1517 [2025-02-08 08:04:05,886 INFO L226 Difference]: Without dead ends: 1517 [2025-02-08 08:04:05,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=496, Unknown=4, NotChecked=94, Total=702 [2025-02-08 08:04:05,886 INFO L435 NwaCegarLoop]: 991 mSDtfsCounter, 1540 mSDsluCounter, 9749 mSDsCounter, 0 mSdLazyCounter, 7049 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 7074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:05,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 10740 Invalid, 7074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7049 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-08 08:04:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2025-02-08 08:04:05,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1514. [2025-02-08 08:04:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1038 states have (on average 1.674373795761079) internal successors, (1738), 1502 states have internal predecessors, (1738), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1758 transitions. [2025-02-08 08:04:05,896 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1758 transitions. Word has length 88 [2025-02-08 08:04:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:05,896 INFO L471 AbstractCegarLoop]: Abstraction has 1514 states and 1758 transitions. [2025-02-08 08:04:05,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.8) internal successors, (132), 17 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1758 transitions. [2025-02-08 08:04:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-08 08:04:05,897 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:05,897 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] [2025-02-08 08:04:05,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:04:06,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:06,101 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:06,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:06,101 INFO L85 PathProgramCache]: Analyzing trace with hash 366943792, now seen corresponding path program 1 times [2025-02-08 08:04:06,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:06,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414487442] [2025-02-08 08:04:06,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:06,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 08:04:06,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 08:04:06,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:06,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414487442] [2025-02-08 08:04:06,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414487442] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684882048] [2025-02-08 08:04:06,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:06,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:06,534 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) [2025-02-08 08:04:06,535 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 [2025-02-08 08:04:06,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 08:04:06,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 08:04:06,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:06,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:06,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-02-08 08:04:06,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:06,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:06,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2025-02-08 08:04:06,803 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:06,803 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 [2025-02-08 08:04:06,826 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 [2025-02-08 08:04:06,844 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 [2025-02-08 08:04:06,916 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 [2025-02-08 08:04:06,923 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 [2025-02-08 08:04:06,992 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:06,992 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 [2025-02-08 08:04:06,997 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 [2025-02-08 08:04:07,052 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:07,052 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 [2025-02-08 08:04:07,057 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 [2025-02-08 08:04:07,068 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 [2025-02-08 08:04:07,071 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 [2025-02-08 08:04:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:07,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:07,149 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1068 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1068 (Array Int Int)) (v_ArrVal_1067 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-02-08 08:04:07,158 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1068 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))) (forall ((v_ArrVal_1068 (Array Int Int)) (v_ArrVal_1067 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-02-08 08:04:07,199 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1068 (Array Int Int)) (v_ArrVal_1067 (Array Int Int)) (v_ArrVal_1074 (Array Int Int)) (v_ArrVal_1073 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1074))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1073) .cse0 v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1067) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1068 (Array Int Int)) (v_ArrVal_1074 (Array Int Int)) (v_ArrVal_1073 (Array Int Int))) (<= 0 (+ 4 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1073) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1074) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1068) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2025-02-08 08:04:07,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684882048] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:07,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:07,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2025-02-08 08:04:07,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890413300] [2025-02-08 08:04:07,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:07,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 08:04:07,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:07,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 08:04:07,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=397, Unknown=3, NotChecked=126, Total=600 [2025-02-08 08:04:07,202 INFO L87 Difference]: Start difference. First operand 1514 states and 1758 transitions. Second operand has 20 states, 17 states have (on average 8.176470588235293) internal successors, (139), 20 states have internal predecessors, (139), 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) [2025-02-08 08:04:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:11,397 INFO L93 Difference]: Finished difference Result 1516 states and 1765 transitions. [2025-02-08 08:04:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:04:11,397 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.176470588235293) internal successors, (139), 20 states have internal predecessors, (139), 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 88 [2025-02-08 08:04:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:11,400 INFO L225 Difference]: With dead ends: 1516 [2025-02-08 08:04:11,400 INFO L226 Difference]: Without dead ends: 1516 [2025-02-08 08:04:11,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=594, Unknown=3, NotChecked=156, Total=870 [2025-02-08 08:04:11,400 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 1544 mSDsluCounter, 9669 mSDsCounter, 0 mSdLazyCounter, 10353 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 10665 SdHoareTripleChecker+Invalid, 10393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 10353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:11,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 10665 Invalid, 10393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 10353 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-08 08:04:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2025-02-08 08:04:11,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1504. [2025-02-08 08:04:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1030 states have (on average 1.6776699029126214) internal successors, (1728), 1493 states have internal predecessors, (1728), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:04:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1747 transitions. [2025-02-08 08:04:11,418 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1747 transitions. Word has length 88 [2025-02-08 08:04:11,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:11,419 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1747 transitions. [2025-02-08 08:04:11,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.176470588235293) internal successors, (139), 20 states have internal predecessors, (139), 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) [2025-02-08 08:04:11,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1747 transitions. [2025-02-08 08:04:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-08 08:04:11,419 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:11,419 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] [2025-02-08 08:04:11,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:04:11,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:11,624 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr605REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:11,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1450446798, now seen corresponding path program 1 times [2025-02-08 08:04:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657714028] [2025-02-08 08:04:11,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:11,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 08:04:11,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 08:04:11,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:11,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:12,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657714028] [2025-02-08 08:04:12,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657714028] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:12,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 08:04:12,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042100130] [2025-02-08 08:04:12,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:12,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:04:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:12,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:04:12,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:04:12,040 INFO L87 Difference]: Start difference. First operand 1504 states and 1747 transitions. Second operand has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 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) [2025-02-08 08:04:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:14,252 INFO L93 Difference]: Finished difference Result 1520 states and 1769 transitions. [2025-02-08 08:04:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:04:14,252 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 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 90 [2025-02-08 08:04:14,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:14,254 INFO L225 Difference]: With dead ends: 1520 [2025-02-08 08:04:14,254 INFO L226 Difference]: Without dead ends: 1520 [2025-02-08 08:04:14,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:04:14,255 INFO L435 NwaCegarLoop]: 990 mSDtfsCounter, 1554 mSDsluCounter, 6794 mSDsCounter, 0 mSdLazyCounter, 5191 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 5217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:14,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 7784 Invalid, 5217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5191 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-08 08:04:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2025-02-08 08:04:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1516. [2025-02-08 08:04:14,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1041 states have (on average 1.6724303554274735) internal successors, (1741), 1504 states have internal predecessors, (1741), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1761 transitions. [2025-02-08 08:04:14,264 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1761 transitions. Word has length 90 [2025-02-08 08:04:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:14,264 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 1761 transitions. [2025-02-08 08:04:14,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 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) [2025-02-08 08:04:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1761 transitions. [2025-02-08 08:04:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-08 08:04:14,265 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:14,265 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] [2025-02-08 08:04:14,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 08:04:14,265 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr606REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:14,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:14,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1450446799, now seen corresponding path program 1 times [2025-02-08 08:04:14,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:14,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268745975] [2025-02-08 08:04:14,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:14,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:14,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 08:04:14,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 08:04:14,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:14,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:14,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268745975] [2025-02-08 08:04:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268745975] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:14,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:14,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-08 08:04:14,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422944731] [2025-02-08 08:04:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:14,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 08:04:14,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:14,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 08:04:14,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:04:14,703 INFO L87 Difference]: Start difference. First operand 1516 states and 1761 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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) [2025-02-08 08:04:17,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:17,604 INFO L93 Difference]: Finished difference Result 1519 states and 1768 transitions. [2025-02-08 08:04:17,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:04:17,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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 90 [2025-02-08 08:04:17,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:17,609 INFO L225 Difference]: With dead ends: 1519 [2025-02-08 08:04:17,609 INFO L226 Difference]: Without dead ends: 1519 [2025-02-08 08:04:17,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:04:17,614 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 1565 mSDsluCounter, 6468 mSDsCounter, 0 mSdLazyCounter, 7103 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 7465 SdHoareTripleChecker+Invalid, 7127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:17,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 7465 Invalid, 7127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 7103 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-08 08:04:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2025-02-08 08:04:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1516. [2025-02-08 08:04:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1041 states have (on average 1.6714697406340058) internal successors, (1740), 1504 states have internal predecessors, (1740), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1760 transitions. [2025-02-08 08:04:17,625 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1760 transitions. Word has length 90 [2025-02-08 08:04:17,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:17,625 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 1760 transitions. [2025-02-08 08:04:17,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 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) [2025-02-08 08:04:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1760 transitions. [2025-02-08 08:04:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-08 08:04:17,626 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:17,626 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] [2025-02-08 08:04:17,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 08:04:17,626 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr605REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:17,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash 932420201, now seen corresponding path program 1 times [2025-02-08 08:04:17,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:17,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084896201] [2025-02-08 08:04:17,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:17,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:17,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 08:04:17,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 08:04:17,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:17,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:17,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084896201] [2025-02-08 08:04:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084896201] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943375230] [2025-02-08 08:04:17,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:17,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:17,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:17,965 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) [2025-02-08 08:04:17,966 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 [2025-02-08 08:04:18,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 08:04:18,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 08:04:18,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:18,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:18,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-08 08:04:18,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:18,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:18,363 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:18,363 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 [2025-02-08 08:04:18,369 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 [2025-02-08 08:04:18,466 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:18,467 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 [2025-02-08 08:04:18,518 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:18,519 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 [2025-02-08 08:04:18,555 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:18,555 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 [2025-02-08 08:04:18,563 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 [2025-02-08 08:04:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:18,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:22,792 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2025-02-08 08:04:22,793 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 57 treesize of output 56 [2025-02-08 08:04:22,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943375230] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:22,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:22,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 18 [2025-02-08 08:04:22,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897240917] [2025-02-08 08:04:22,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:22,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 08:04:22,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:22,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 08:04:22,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=432, Unknown=45, NotChecked=0, Total=552 [2025-02-08 08:04:22,842 INFO L87 Difference]: Start difference. First operand 1516 states and 1760 transitions. Second operand has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:25,889 INFO L93 Difference]: Finished difference Result 1518 states and 1767 transitions. [2025-02-08 08:04:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:04:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-08 08:04:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:25,892 INFO L225 Difference]: With dead ends: 1518 [2025-02-08 08:04:25,893 INFO L226 Difference]: Without dead ends: 1518 [2025-02-08 08:04:25,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=149, Invalid=794, Unknown=49, NotChecked=0, Total=992 [2025-02-08 08:04:25,893 INFO L435 NwaCegarLoop]: 990 mSDtfsCounter, 1540 mSDsluCounter, 8767 mSDsCounter, 0 mSdLazyCounter, 6449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 9757 SdHoareTripleChecker+Invalid, 6487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:25,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 9757 Invalid, 6487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6449 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-08 08:04:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2025-02-08 08:04:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1515. [2025-02-08 08:04:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1041 states have (on average 1.670509125840538) internal successors, (1739), 1503 states have internal predecessors, (1739), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1759 transitions. [2025-02-08 08:04:25,906 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1759 transitions. Word has length 91 [2025-02-08 08:04:25,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:25,906 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1759 transitions. [2025-02-08 08:04:25,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1759 transitions. [2025-02-08 08:04:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-08 08:04:25,907 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:25,907 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] [2025-02-08 08:04:25,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:04:26,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-08 08:04:26,109 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr606REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:26,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:26,109 INFO L85 PathProgramCache]: Analyzing trace with hash 932420202, now seen corresponding path program 1 times [2025-02-08 08:04:26,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:26,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414977895] [2025-02-08 08:04:26,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:26,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:26,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 08:04:26,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 08:04:26,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:26,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:26,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414977895] [2025-02-08 08:04:26,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414977895] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:26,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727501230] [2025-02-08 08:04:26,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:26,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:26,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:04:26,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:04:26,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 08:04:26,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 08:04:26,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:26,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:26,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-02-08 08:04:26,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:26,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:27,019 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:27,020 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 [2025-02-08 08:04:27,028 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 [2025-02-08 08:04:27,032 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 [2025-02-08 08:04:27,039 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 [2025-02-08 08:04:27,076 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 [2025-02-08 08:04:27,079 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 [2025-02-08 08:04:27,183 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:27,183 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 [2025-02-08 08:04:27,192 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 [2025-02-08 08:04:27,244 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:27,244 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 [2025-02-08 08:04:27,254 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 [2025-02-08 08:04:27,296 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:27,297 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 [2025-02-08 08:04:27,301 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 [2025-02-08 08:04:27,316 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 [2025-02-08 08:04:27,318 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 [2025-02-08 08:04:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:27,321 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:27,366 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int))) (<= (+ 12 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1514) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1513 (Array Int Int))) (<= 0 (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-02-08 08:04:27,373 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1514) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1513 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8)))))) is different from false [2025-02-08 08:04:27,388 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int)) (v_ArrVal_1512 (Array Int Int)) (v_ArrVal_1511 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1511))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1512) .cse0 v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1514) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1513 (Array Int Int)) (v_ArrVal_1512 (Array Int Int)) (v_ArrVal_1511 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1512) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2025-02-08 08:04:27,494 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int)) (v_ArrVal_1512 (Array Int Int)) (v_ArrVal_1511 (Array Int Int)) (v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1519))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_1511))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1520) .cse0 v_ArrVal_1512) .cse1 v_ArrVal_1513) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 12) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1514) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_1513 (Array Int Int)) (v_ArrVal_1512 (Array Int Int)) (v_ArrVal_1511 (Array Int Int)) (v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1519))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1520) .cse5 v_ArrVal_1512) (select (select (store .cse6 .cse5 v_ArrVal_1511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1513))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8))))) is different from false [2025-02-08 08:04:27,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727501230] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:27,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:27,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 17 [2025-02-08 08:04:27,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157871750] [2025-02-08 08:04:27,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:27,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 08:04:27,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:27,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 08:04:27,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=351, Unknown=6, NotChecked=164, Total=600 [2025-02-08 08:04:27,497 INFO L87 Difference]: Start difference. First operand 1515 states and 1759 transitions. Second operand has 18 states, 16 states have (on average 8.5) internal successors, (136), 18 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:31,686 INFO L93 Difference]: Finished difference Result 1517 states and 1766 transitions. [2025-02-08 08:04:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:04:31,687 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 18 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-08 08:04:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:31,690 INFO L225 Difference]: With dead ends: 1517 [2025-02-08 08:04:31,690 INFO L226 Difference]: Without dead ends: 1517 [2025-02-08 08:04:31,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=583, Unknown=6, NotChecked=212, Total=930 [2025-02-08 08:04:31,691 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 1537 mSDsluCounter, 7434 mSDsCounter, 0 mSdLazyCounter, 7736 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 7762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:31,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 8429 Invalid, 7762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 7736 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-08 08:04:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2025-02-08 08:04:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1502. [2025-02-08 08:04:31,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1030 states have (on average 1.6757281553398058) internal successors, (1726), 1491 states have internal predecessors, (1726), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:04:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1745 transitions. [2025-02-08 08:04:31,703 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1745 transitions. Word has length 91 [2025-02-08 08:04:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:31,703 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 1745 transitions. [2025-02-08 08:04:31,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 18 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 08:04:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1745 transitions. [2025-02-08 08:04:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-08 08:04:31,704 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:31,705 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] [2025-02-08 08:04:31,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 08:04:31,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-08 08:04:31,905 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr601REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:31,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1403701949, now seen corresponding path program 1 times [2025-02-08 08:04:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:31,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577593194] [2025-02-08 08:04:31,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:31,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-08 08:04:31,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-08 08:04:31,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:31,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:32,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:32,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577593194] [2025-02-08 08:04:32,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577593194] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:32,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:32,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-02-08 08:04:32,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554512411] [2025-02-08 08:04:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:32,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 08:04:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:32,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 08:04:32,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-02-08 08:04:32,381 INFO L87 Difference]: Start difference. First operand 1502 states and 1745 transitions. Second operand has 16 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 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) [2025-02-08 08:04:36,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:36,332 INFO L93 Difference]: Finished difference Result 1521 states and 1770 transitions. [2025-02-08 08:04:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:04:36,333 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 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 93 [2025-02-08 08:04:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:36,335 INFO L225 Difference]: With dead ends: 1521 [2025-02-08 08:04:36,335 INFO L226 Difference]: Without dead ends: 1521 [2025-02-08 08:04:36,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2025-02-08 08:04:36,336 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 1551 mSDsluCounter, 10659 mSDsCounter, 0 mSdLazyCounter, 7764 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 11648 SdHoareTripleChecker+Invalid, 7789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:36,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 11648 Invalid, 7789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7764 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-02-08 08:04:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2025-02-08 08:04:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1517. [2025-02-08 08:04:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1044 states have (on average 1.6685823754789273) internal successors, (1742), 1505 states have internal predecessors, (1742), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1762 transitions. [2025-02-08 08:04:36,345 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1762 transitions. Word has length 93 [2025-02-08 08:04:36,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:36,345 INFO L471 AbstractCegarLoop]: Abstraction has 1517 states and 1762 transitions. [2025-02-08 08:04:36,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 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) [2025-02-08 08:04:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1762 transitions. [2025-02-08 08:04:36,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-08 08:04:36,346 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:36,346 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] [2025-02-08 08:04:36,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 08:04:36,347 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr602REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:36,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1403701948, now seen corresponding path program 1 times [2025-02-08 08:04:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047974191] [2025-02-08 08:04:36,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:36,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-08 08:04:36,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-08 08:04:36,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:36,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:37,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:37,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047974191] [2025-02-08 08:04:37,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047974191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:37,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:37,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 08:04:37,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338129439] [2025-02-08 08:04:37,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:37,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:04:37,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:37,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:04:37,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:04:37,060 INFO L87 Difference]: Start difference. First operand 1517 states and 1762 transitions. Second operand has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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) [2025-02-08 08:04:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:39,655 INFO L93 Difference]: Finished difference Result 1520 states and 1769 transitions. [2025-02-08 08:04:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:04:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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 93 [2025-02-08 08:04:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:39,659 INFO L225 Difference]: With dead ends: 1520 [2025-02-08 08:04:39,659 INFO L226 Difference]: Without dead ends: 1520 [2025-02-08 08:04:39,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2025-02-08 08:04:39,660 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 1550 mSDsluCounter, 5165 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 6161 SdHoareTripleChecker+Invalid, 5197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:39,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 6161 Invalid, 5197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 08:04:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2025-02-08 08:04:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1517. [2025-02-08 08:04:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1044 states have (on average 1.667624521072797) internal successors, (1741), 1505 states have internal predecessors, (1741), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1761 transitions. [2025-02-08 08:04:39,677 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1761 transitions. Word has length 93 [2025-02-08 08:04:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:39,678 INFO L471 AbstractCegarLoop]: Abstraction has 1517 states and 1761 transitions. [2025-02-08 08:04:39,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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) [2025-02-08 08:04:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1761 transitions. [2025-02-08 08:04:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-08 08:04:39,678 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:39,679 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] [2025-02-08 08:04:39,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 08:04:39,679 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr601REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:39,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:39,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2116558648, now seen corresponding path program 1 times [2025-02-08 08:04:39,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:39,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539093752] [2025-02-08 08:04:39,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:39,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:39,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 08:04:39,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 08:04:39,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:39,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:40,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:40,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539093752] [2025-02-08 08:04:40,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539093752] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:40,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816443515] [2025-02-08 08:04:40,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:40,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:40,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:40,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:04:40,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:04:40,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 08:04:40,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 08:04:40,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:40,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:40,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-02-08 08:04:40,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:40,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:40,415 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:40,416 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 [2025-02-08 08:04:40,428 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 [2025-02-08 08:04:40,508 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:40,508 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 [2025-02-08 08:04:40,547 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:40,548 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 [2025-02-08 08:04:40,588 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:40,589 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 [2025-02-08 08:04:40,648 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:40,648 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 [2025-02-08 08:04:40,658 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 [2025-02-08 08:04:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:40,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:40,670 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1827 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1827) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-02-08 08:04:40,675 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1827 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-02-08 08:04:40,683 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1827 (Array Int Int)) (v_ArrVal_1826 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1826))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1827)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-02-08 08:04:40,688 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1827 (Array Int Int)) (v_ArrVal_1826 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1826))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1827)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-02-08 08:04:40,697 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1827 (Array Int Int)) (v_ArrVal_1826 (Array Int Int)) (v_ArrVal_1825 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1825))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1826)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1827)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-02-08 08:04:40,756 INFO L349 Elim1Store]: treesize reduction 5, result has 95.0 percent of original size [2025-02-08 08:04:40,756 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 105 treesize of output 104 [2025-02-08 08:04:40,761 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1830 (Array Int Int)) (v_ArrVal_1827 (Array Int Int)) (v_ArrVal_1826 (Array Int Int)) (v_ArrVal_1825 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem50#1.base| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1830))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1825)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1826)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1827)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2025-02-08 08:04:40,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816443515] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:40,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:40,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 21 [2025-02-08 08:04:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566931616] [2025-02-08 08:04:40,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:40,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 08:04:40,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:40,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 08:04:40,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=430, Unknown=11, NotChecked=282, Total=812 [2025-02-08 08:04:40,763 INFO L87 Difference]: Start difference. First operand 1517 states and 1761 transitions. Second operand has 22 states, 19 states have (on average 7.526315789473684) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 08:04:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:43,964 INFO L93 Difference]: Finished difference Result 1519 states and 1768 transitions. [2025-02-08 08:04:43,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:04:43,964 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 7.526315789473684) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (2), 1 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 94 [2025-02-08 08:04:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:43,967 INFO L225 Difference]: With dead ends: 1519 [2025-02-08 08:04:43,967 INFO L226 Difference]: Without dead ends: 1519 [2025-02-08 08:04:43,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=837, Unknown=12, NotChecked=390, Total=1406 [2025-02-08 08:04:43,967 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 1534 mSDsluCounter, 9700 mSDsCounter, 0 mSdLazyCounter, 7108 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 10689 SdHoareTripleChecker+Invalid, 7135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 7108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:43,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 10689 Invalid, 7135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 7108 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-08 08:04:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2025-02-08 08:04:43,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1516. [2025-02-08 08:04:43,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1044 states have (on average 1.6666666666666667) internal successors, (1740), 1504 states have internal predecessors, (1740), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1760 transitions. [2025-02-08 08:04:43,978 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1760 transitions. Word has length 94 [2025-02-08 08:04:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:43,978 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 1760 transitions. [2025-02-08 08:04:43,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 7.526315789473684) internal successors, (143), 22 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 08:04:43,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1760 transitions. [2025-02-08 08:04:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-08 08:04:43,979 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:43,979 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] [2025-02-08 08:04:43,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 08:04:44,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:44,183 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr602REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:44,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2116558647, now seen corresponding path program 1 times [2025-02-08 08:04:44,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:44,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151205034] [2025-02-08 08:04:44,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:44,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:44,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 08:04:44,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 08:04:44,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:44,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:44,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:44,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151205034] [2025-02-08 08:04:44,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151205034] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:44,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55010428] [2025-02-08 08:04:44,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:44,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:44,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:44,832 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:04:44,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 08:04:45,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 08:04:45,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 08:04:45,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:45,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:45,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-02-08 08:04:45,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:45,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:45,284 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:45,284 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 [2025-02-08 08:04:45,291 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 [2025-02-08 08:04:45,315 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 [2025-02-08 08:04:45,322 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 [2025-02-08 08:04:45,404 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 [2025-02-08 08:04:45,407 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 [2025-02-08 08:04:45,496 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:45,497 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 [2025-02-08 08:04:45,503 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 [2025-02-08 08:04:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:04:45,583 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 45 [2025-02-08 08:04:45,587 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 [2025-02-08 08:04:45,643 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:45,643 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 [2025-02-08 08:04:45,646 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 [2025-02-08 08:04:45,719 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:45,720 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 [2025-02-08 08:04:45,726 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 [2025-02-08 08:04:45,742 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 [2025-02-08 08:04:45,748 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 [2025-02-08 08:04:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:45,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:46,232 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8)) (.cse4 (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base|)) (.cse5 (+ |c_ULTIMATE.start_main_#t~mem52#1.offset| 16))) (and (forall ((v_ArrVal_1997 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_ArrVal_1996 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| (store .cse4 .cse5 v_ArrVal_1996)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1995) .cse3 v_ArrVal_1997))) (or (< (+ 8 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) 0) (forall ((v_ArrVal_1999 (Array Int Int)) (v_ArrVal_1998 (Array Int Int))) (<= 0 (+ (select (select (store .cse0 (select (select (store .cse2 .cse3 v_ArrVal_1998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20)))))))) (forall ((v_ArrVal_1997 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_ArrVal_1996 Int)) (let ((.cse9 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| (store .cse4 .cse5 v_ArrVal_1996)))) (let ((.cse10 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse6 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1995) .cse10 v_ArrVal_1997))) (or (< (+ 8 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) 0) (forall ((v_ArrVal_1999 (Array Int Int)) (v_ArrVal_1998 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (let ((.cse8 (store .cse9 .cse10 v_ArrVal_1998))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store .cse6 .cse7 v_ArrVal_1999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse8 .cse7 v_ArrVal_2000) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))))) is different from false [2025-02-08 08:04:46,602 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((|v_ULTIMATE.start_main_#t~mem52#1.offset_21| Int) (v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2005))) (or (< |v_ULTIMATE.start_main_#t~mem52#1.offset_21| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (forall ((v_ArrVal_1997 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_ArrVal_1996 Int)) (let ((.cse8 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2006))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse8 .cse7 (store (select .cse8 .cse7) (+ |v_ULTIMATE.start_main_#t~mem52#1.offset_21| 16) v_ArrVal_1996)))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse2 (store (store .cse0 .cse7 v_ArrVal_1995) .cse6 v_ArrVal_1997))) (or (< (+ (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) 0) (forall ((v_ArrVal_1999 (Array Int Int)) (v_ArrVal_1998 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (let ((.cse4 (store .cse5 .cse6 v_ArrVal_1998))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store .cse2 .cse3 v_ArrVal_1999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_2000) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))))))) (forall ((|v_ULTIMATE.start_main_#t~mem52#1.offset_21| Int) (v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int))) (let ((.cse9 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2005))) (or (< |v_ULTIMATE.start_main_#t~mem52#1.offset_21| (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (forall ((v_ArrVal_1997 (Array Int Int)) (v_ArrVal_1995 (Array Int Int)) (v_ArrVal_1996 Int)) (let ((.cse14 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2006))) (let ((.cse13 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse11 (store .cse14 .cse13 (store (select .cse14 .cse13) (+ |v_ULTIMATE.start_main_#t~mem52#1.offset_21| 16) v_ArrVal_1996)))) (let ((.cse12 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse10 (store (store .cse9 .cse13 v_ArrVal_1995) .cse12 v_ArrVal_1997))) (or (< (+ (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) 0) (forall ((v_ArrVal_1999 (Array Int Int)) (v_ArrVal_1998 (Array Int Int))) (<= 0 (+ (select (select (store .cse10 (select (select (store .cse11 .cse12 v_ArrVal_1998) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1999) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))))))))))))))) is different from false [2025-02-08 08:04:46,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55010428] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:46,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:04:46,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2025-02-08 08:04:46,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737287210] [2025-02-08 08:04:46,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:04:46,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:04:46,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:46,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:04:46,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=772, Unknown=25, NotChecked=118, Total=1056 [2025-02-08 08:04:46,608 INFO L87 Difference]: Start difference. First operand 1516 states and 1760 transitions. Second operand has 24 states, 21 states have (on average 8.666666666666666) internal successors, (182), 24 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) [2025-02-08 08:04:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:50,751 INFO L93 Difference]: Finished difference Result 2391 states and 2811 transitions. [2025-02-08 08:04:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:04:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 8.666666666666666) internal successors, (182), 24 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 94 [2025-02-08 08:04:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:50,760 INFO L225 Difference]: With dead ends: 2391 [2025-02-08 08:04:50,760 INFO L226 Difference]: Without dead ends: 2391 [2025-02-08 08:04:50,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=236, Invalid=1229, Unknown=25, NotChecked=150, Total=1640 [2025-02-08 08:04:50,761 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 3967 mSDsluCounter, 7390 mSDsCounter, 0 mSdLazyCounter, 7370 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3983 SdHoareTripleChecker+Valid, 8383 SdHoareTripleChecker+Invalid, 7454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 7370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:50,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3983 Valid, 8383 Invalid, 7454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 7370 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-08 08:04:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2025-02-08 08:04:50,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1500. [2025-02-08 08:04:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1030 states have (on average 1.6737864077669904) internal successors, (1724), 1489 states have internal predecessors, (1724), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:04:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1743 transitions. [2025-02-08 08:04:50,772 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1743 transitions. Word has length 94 [2025-02-08 08:04:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:50,772 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1743 transitions. [2025-02-08 08:04:50,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 8.666666666666666) internal successors, (182), 24 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) [2025-02-08 08:04:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1743 transitions. [2025-02-08 08:04:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-08 08:04:50,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:50,773 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] [2025-02-08 08:04:50,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:04:50,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-02-08 08:04:50,974 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr597REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:50,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1803916093, now seen corresponding path program 1 times [2025-02-08 08:04:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924810603] [2025-02-08 08:04:50,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:50,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:50,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-08 08:04:50,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-08 08:04:50,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:50,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:51,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:51,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924810603] [2025-02-08 08:04:51,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924810603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:51,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:51,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-08 08:04:51,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476860103] [2025-02-08 08:04:51,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:51,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 08:04:51,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:51,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 08:04:51,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-02-08 08:04:51,436 INFO L87 Difference]: Start difference. First operand 1500 states and 1743 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 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) [2025-02-08 08:04:53,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:53,452 INFO L93 Difference]: Finished difference Result 1523 states and 1772 transitions. [2025-02-08 08:04:53,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:04:53,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 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 97 [2025-02-08 08:04:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:53,455 INFO L225 Difference]: With dead ends: 1523 [2025-02-08 08:04:53,455 INFO L226 Difference]: Without dead ends: 1523 [2025-02-08 08:04:53,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:04:53,455 INFO L435 NwaCegarLoop]: 994 mSDtfsCounter, 1554 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 6798 SdHoareTripleChecker+Invalid, 4585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:53,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 6798 Invalid, 4585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-08 08:04:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2025-02-08 08:04:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1519. [2025-02-08 08:04:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1048 states have (on average 1.6641221374045803) internal successors, (1744), 1507 states have internal predecessors, (1744), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1764 transitions. [2025-02-08 08:04:53,478 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1764 transitions. Word has length 97 [2025-02-08 08:04:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:53,478 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 1764 transitions. [2025-02-08 08:04:53,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 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) [2025-02-08 08:04:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1764 transitions. [2025-02-08 08:04:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-08 08:04:53,478 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:53,482 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] [2025-02-08 08:04:53,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-08 08:04:53,483 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr598REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:53,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1803916094, now seen corresponding path program 1 times [2025-02-08 08:04:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207379329] [2025-02-08 08:04:53,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:53,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-08 08:04:53,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-08 08:04:53,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:53,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:54,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207379329] [2025-02-08 08:04:54,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207379329] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:04:54,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:04:54,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-02-08 08:04:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144361970] [2025-02-08 08:04:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:04:54,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 08:04:54,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:04:54,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 08:04:54,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2025-02-08 08:04:54,267 INFO L87 Difference]: Start difference. First operand 1519 states and 1764 transitions. Second operand has 18 states, 16 states have (on average 5.9375) internal successors, (95), 17 states have internal predecessors, (95), 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) [2025-02-08 08:04:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:04:58,376 INFO L93 Difference]: Finished difference Result 1522 states and 1771 transitions. [2025-02-08 08:04:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:04:58,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.9375) internal successors, (95), 17 states have internal predecessors, (95), 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 97 [2025-02-08 08:04:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:04:58,380 INFO L225 Difference]: With dead ends: 1522 [2025-02-08 08:04:58,380 INFO L226 Difference]: Without dead ends: 1522 [2025-02-08 08:04:58,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:04:58,381 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 1568 mSDsluCounter, 7413 mSDsCounter, 0 mSdLazyCounter, 7810 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 8402 SdHoareTripleChecker+Invalid, 7839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 7810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:04:58,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 8402 Invalid, 7839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 7810 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-08 08:04:58,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2025-02-08 08:04:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1519. [2025-02-08 08:04:58,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1048 states have (on average 1.6631679389312977) internal successors, (1743), 1507 states have internal predecessors, (1743), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2025-02-08 08:04:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1763 transitions. [2025-02-08 08:04:58,393 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1763 transitions. Word has length 97 [2025-02-08 08:04:58,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:04:58,393 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 1763 transitions. [2025-02-08 08:04:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.9375) internal successors, (95), 17 states have internal predecessors, (95), 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) [2025-02-08 08:04:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1763 transitions. [2025-02-08 08:04:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-08 08:04:58,394 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:04:58,394 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] [2025-02-08 08:04:58,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-08 08:04:58,394 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr597REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-02-08 08:04:58,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:04:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash 554497090, now seen corresponding path program 1 times [2025-02-08 08:04:58,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:04:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475587129] [2025-02-08 08:04:58,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:58,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:04:58,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 08:04:58,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 08:04:58,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:58,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:59,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:04:59,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475587129] [2025-02-08 08:04:59,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475587129] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:04:59,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824787537] [2025-02-08 08:04:59,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:04:59,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:04:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:04:59,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:04:59,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 08:04:59,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 08:04:59,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 08:04:59,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:04:59,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:04:59,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-02-08 08:04:59,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:04:59,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:04:59,369 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 08:04:59,369 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 [2025-02-08 08:04:59,375 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 [2025-02-08 08:04:59,411 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:59,412 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 [2025-02-08 08:04:59,442 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:59,442 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 [2025-02-08 08:04:59,483 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:59,483 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 [2025-02-08 08:04:59,525 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:59,525 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 [2025-02-08 08:04:59,570 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:04:59,571 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 [2025-02-08 08:04:59,580 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 [2025-02-08 08:04:59,589 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-02-08 08:04:59,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-02-08 08:04:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:04:59,610 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:04:59,646 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2346 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2346) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false