./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/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/array-memsafety-realloc/array-realloc-2.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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'a27e6fc2049c9dc12360bd8cd7682ef33f4a19a5a5a6c0e7a780c3703a0494b5'] 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/array-memsafety-realloc/array-realloc-2.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 a27e6fc2049c9dc12360bd8cd7682ef33f4a19a5a5a6c0e7a780c3703a0494b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 16:18:57,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 16:18:57,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 16:18:57,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 16:18:57,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 16:18:57,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 16:18:57,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 16:18:57,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 16:18:57,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 16:18:57,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 16:18:57,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 16:18:57,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 16:18:57,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 16:18:57,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 16:18:57,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 16:18:57,472 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 16:18:57,473 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 16:18:57,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 16:18:57,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 16:18:57,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 16:18:57,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 16:18:57,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:18:57,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 16:18:57,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 16:18:57,475 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 -> a27e6fc2049c9dc12360bd8cd7682ef33f4a19a5a5a6c0e7a780c3703a0494b5 [2024-11-07 16:18:57,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 16:18:57,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 16:18:57,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 16:18:57,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 16:18:57,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 16:18:57,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2024-11-07 16:18:59,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 16:18:59,340 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 16:18:59,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2024-11-07 16:18:59,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3dab4477/eb8037efab524f03ad47e2ec74c6547f/FLAG113fd59a7 [2024-11-07 16:18:59,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3dab4477/eb8037efab524f03ad47e2ec74c6547f [2024-11-07 16:18:59,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 16:18:59,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 16:18:59,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 16:18:59,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 16:18:59,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 16:18:59,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34868d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59, skipping insertion in model container [2024-11-07 16:18:59,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 16:18:59,679 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:18:59,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:18:59,694 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 16:18:59,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:18:59,758 INFO L204 MainTranslator]: Completed translation [2024-11-07 16:18:59,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59 WrapperNode [2024-11-07 16:18:59,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 16:18:59,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 16:18:59,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 16:18:59,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 16:18:59,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,798 INFO L138 Inliner]: procedures = 119, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-07 16:18:59,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 16:18:59,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 16:18:59,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 16:18:59,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 16:18:59,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,825 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-07 16:18:59,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 16:18:59,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 16:18:59,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 16:18:59,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 16:18:59,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (1/1) ... [2024-11-07 16:18:59,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:18:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:18:59,890 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) [2024-11-07 16:18:59,896 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 [2024-11-07 16:18:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-07 16:18:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 16:18:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 16:19:00,040 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 16:19:00,043 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 16:19:00,223 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-07 16:19:00,223 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 16:19:00,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 16:19:00,236 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 16:19:00,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:00 BoogieIcfgContainer [2024-11-07 16:19:00,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 16:19:00,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 16:19:00,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 16:19:00,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 16:19:00,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:59" (1/3) ... [2024-11-07 16:19:00,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff80209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:00, skipping insertion in model container [2024-11-07 16:19:00,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:59" (2/3) ... [2024-11-07 16:19:00,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff80209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:00, skipping insertion in model container [2024-11-07 16:19:00,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:00" (3/3) ... [2024-11-07 16:19:00,248 INFO L112 eAbstractionObserver]: Analyzing ICFG array-realloc-2.i [2024-11-07 16:19:00,259 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 16:19:00,260 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 16:19:00,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 16:19:00,316 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;@643c3249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 16:19:00,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-07 16:19:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 36 states have internal predecessors, (42), 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) [2024-11-07 16:19:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-07 16:19:00,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:00,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-07 16:19:00,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:00,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash 925663, now seen corresponding path program 1 times [2024-11-07 16:19:00,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:00,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650570297] [2024-11-07 16:19:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:00,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:00,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650570297] [2024-11-07 16:19:00,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650570297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:00,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:00,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 16:19:00,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171407552] [2024-11-07 16:19:00,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:00,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 16:19:00,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:00,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 16:19:00,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 16:19:00,532 INFO L87 Difference]: Start difference. First operand has 37 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 36 states have internal predecessors, (42), 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) 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) [2024-11-07 16:19:00,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:00,590 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2024-11-07 16:19:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 16:19:00,593 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 [2024-11-07 16:19:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:00,599 INFO L225 Difference]: With dead ends: 38 [2024-11-07 16:19:00,599 INFO L226 Difference]: Without dead ends: 35 [2024-11-07 16:19:00,600 INFO L431 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 [2024-11-07 16:19:00,603 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:00,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-07 16:19:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-07 16:19:00,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 34 states have internal predecessors, (38), 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) [2024-11-07 16:19:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-07 16:19:00,633 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 4 [2024-11-07 16:19:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:00,633 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-07 16:19:00,634 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) [2024-11-07 16:19:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-07 16:19:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-07 16:19:00,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:00,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-07 16:19:00,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 16:19:00,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:00,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2024-11-07 16:19:00,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:00,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240372165] [2024-11-07 16:19:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:00,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:00,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:00,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240372165] [2024-11-07 16:19:00,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240372165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:00,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:00,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 16:19:00,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980080635] [2024-11-07 16:19:00,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:00,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 16:19:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:00,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 16:19:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 16:19:00,754 INFO L87 Difference]: Start difference. First operand 35 states and 38 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) [2024-11-07 16:19:00,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:00,828 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-11-07 16:19:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 16:19:00,829 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 [2024-11-07 16:19:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:00,829 INFO L225 Difference]: With dead ends: 52 [2024-11-07 16:19:00,829 INFO L226 Difference]: Without dead ends: 52 [2024-11-07 16:19:00,830 INFO L431 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 [2024-11-07 16:19:00,830 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 26 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:00,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 43 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-07 16:19:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2024-11-07 16:19:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 45 states have internal predecessors, (59), 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) [2024-11-07 16:19:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-07 16:19:00,835 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 4 [2024-11-07 16:19:00,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:00,837 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-07 16:19:00,837 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) [2024-11-07 16:19:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-07 16:19:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-07 16:19:00,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:00,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-07 16:19:00,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 16:19:00,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:00,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2024-11-07 16:19:00,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:00,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329915259] [2024-11-07 16:19:00,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:00,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:00,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:00,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329915259] [2024-11-07 16:19:00,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329915259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:00,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:00,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 16:19:00,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539391646] [2024-11-07 16:19:00,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:00,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 16:19:00,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 16:19:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 16:19:00,998 INFO L87 Difference]: Start difference. First operand 46 states and 59 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) [2024-11-07 16:19:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,046 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2024-11-07 16:19:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 16:19:01,047 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 [2024-11-07 16:19:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,050 INFO L225 Difference]: With dead ends: 54 [2024-11-07 16:19:01,051 INFO L226 Difference]: Without dead ends: 54 [2024-11-07 16:19:01,051 INFO L431 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 [2024-11-07 16:19:01,052 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 47 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-07 16:19:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2024-11-07 16:19:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 48 states have internal predecessors, (63), 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) [2024-11-07 16:19:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2024-11-07 16:19:01,058 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 4 [2024-11-07 16:19:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,058 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2024-11-07 16:19:01,058 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) [2024-11-07 16:19:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2024-11-07 16:19:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-07 16:19:01,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 16:19:01,059 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash 889567416, now seen corresponding path program 1 times [2024-11-07 16:19:01,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279886453] [2024-11-07 16:19:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:01,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279886453] [2024-11-07 16:19:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279886453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:19:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615832482] [2024-11-07 16:19:01,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:01,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:19:01,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:19:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,098 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-07 16:19:01,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,169 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2024-11-07 16:19:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:19:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-07 16:19:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,170 INFO L225 Difference]: With dead ends: 61 [2024-11-07 16:19:01,170 INFO L226 Difference]: Without dead ends: 61 [2024-11-07 16:19:01,171 INFO L431 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 [2024-11-07 16:19:01,171 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 16 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 92 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:01,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-07 16:19:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2024-11-07 16:19:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 48 states have internal predecessors, (62), 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) [2024-11-07 16:19:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2024-11-07 16:19:01,182 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 6 [2024-11-07 16:19:01,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,183 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2024-11-07 16:19:01,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-07 16:19:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2024-11-07 16:19:01,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 16:19:01,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 16:19:01,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1806786797, now seen corresponding path program 1 times [2024-11-07 16:19:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636539264] [2024-11-07 16:19:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:01,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:01,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636539264] [2024-11-07 16:19:01,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636539264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:01,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:01,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:19:01,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955450294] [2024-11-07 16:19:01,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:01,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:19:01,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:01,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:19:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,270 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-07 16:19:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,377 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2024-11-07 16:19:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:19:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-07 16:19:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,378 INFO L225 Difference]: With dead ends: 59 [2024-11-07 16:19:01,378 INFO L226 Difference]: Without dead ends: 59 [2024-11-07 16:19:01,378 INFO L431 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 [2024-11-07 16:19:01,379 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 55 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:01,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-07 16:19:01,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2024-11-07 16:19:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 51 states have internal predecessors, (67), 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) [2024-11-07 16:19:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-07 16:19:01,388 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 7 [2024-11-07 16:19:01,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,388 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-07 16:19:01,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-07 16:19:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-07 16:19:01,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 16:19:01,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 16:19:01,390 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1806786798, now seen corresponding path program 1 times [2024-11-07 16:19:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013397232] [2024-11-07 16:19:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:01,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:01,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013397232] [2024-11-07 16:19:01,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013397232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:01,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:01,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:19:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707508255] [2024-11-07 16:19:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:01,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:19:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:19:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:19:01,538 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-07 16:19:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,598 INFO L93 Difference]: Finished difference Result 55 states and 71 transitions. [2024-11-07 16:19:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:19:01,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2024-11-07 16:19:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,602 INFO L225 Difference]: With dead ends: 55 [2024-11-07 16:19:01,602 INFO L226 Difference]: Without dead ends: 55 [2024-11-07 16:19:01,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:19:01,603 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 64 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-07 16:19:01,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-11-07 16:19:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.619047619047619) internal successors, (68), 52 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) [2024-11-07 16:19:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2024-11-07 16:19:01,610 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 7 [2024-11-07 16:19:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,611 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2024-11-07 16:19:01,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-07 16:19:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2024-11-07 16:19:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 16:19:01,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,614 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 16:19:01,615 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1454297136, now seen corresponding path program 1 times [2024-11-07 16:19:01,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542801] [2024-11-07 16:19:01,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:01,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:01,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542801] [2024-11-07 16:19:01,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:01,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:01,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:19:01,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363634212] [2024-11-07 16:19:01,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:01,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:19:01,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:01,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:19:01,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,664 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:19:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,679 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-11-07 16:19:01,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:19:01,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-07 16:19:01,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,680 INFO L225 Difference]: With dead ends: 50 [2024-11-07 16:19:01,680 INFO L226 Difference]: Without dead ends: 50 [2024-11-07 16:19:01,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,681 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-07 16:19:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-07 16:19:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.641025641025641) internal successors, (64), 49 states have internal predecessors, (64), 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) [2024-11-07 16:19:01,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2024-11-07 16:19:01,685 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 10 [2024-11-07 16:19:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,685 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2024-11-07 16:19:01,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:19:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2024-11-07 16:19:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 16:19:01,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 16:19:01,686 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1602458348, now seen corresponding path program 1 times [2024-11-07 16:19:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687886942] [2024-11-07 16:19:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687886942] [2024-11-07 16:19:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687886942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:01,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:01,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:19:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043441498] [2024-11-07 16:19:01,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:01,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:19:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:19:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,771 INFO L87 Difference]: Start difference. First operand 50 states and 64 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-07 16:19:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:01,820 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2024-11-07 16:19:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:19:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-07 16:19:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:01,821 INFO L225 Difference]: With dead ends: 49 [2024-11-07 16:19:01,821 INFO L226 Difference]: Without dead ends: 49 [2024-11-07 16:19:01,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:01,822 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:01,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-07 16:19:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-07 16:19:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.564102564102564) internal successors, (61), 48 states have internal predecessors, (61), 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) [2024-11-07 16:19:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2024-11-07 16:19:01,828 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 12 [2024-11-07 16:19:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:01,828 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2024-11-07 16:19:01,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-07 16:19:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-07 16:19:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 16:19:01,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:01,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:01,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 16:19:01,829 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:01,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:01,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1602458347, now seen corresponding path program 1 times [2024-11-07 16:19:01,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:01,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581926818] [2024-11-07 16:19:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:01,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:02,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:02,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581926818] [2024-11-07 16:19:02,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581926818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:02,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 16:19:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263904601] [2024-11-07 16:19:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:02,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 16:19:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:02,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 16:19:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:19:02,085 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2024-11-07 16:19:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:02,205 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2024-11-07 16:19:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 16:19:02,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2024-11-07 16:19:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:02,206 INFO L225 Difference]: With dead ends: 81 [2024-11-07 16:19:02,207 INFO L226 Difference]: Without dead ends: 81 [2024-11-07 16:19:02,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 16:19:02,207 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 30 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:02,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 107 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-07 16:19:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 57. [2024-11-07 16:19:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 56 states have internal predecessors, (72), 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) [2024-11-07 16:19:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2024-11-07 16:19:02,211 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 12 [2024-11-07 16:19:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:02,211 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2024-11-07 16:19:02,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2024-11-07 16:19:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2024-11-07 16:19:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 16:19:02,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:02,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:02,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 16:19:02,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:02,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1863398776, now seen corresponding path program 1 times [2024-11-07 16:19:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802310291] [2024-11-07 16:19:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:02,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:02,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802310291] [2024-11-07 16:19:02,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802310291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:02,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:02,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 16:19:02,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965422232] [2024-11-07 16:19:02,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:02,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 16:19:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:02,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 16:19:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 16:19:02,453 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:02,628 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2024-11-07 16:19:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 16:19:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 13 [2024-11-07 16:19:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:02,629 INFO L225 Difference]: With dead ends: 64 [2024-11-07 16:19:02,629 INFO L226 Difference]: Without dead ends: 64 [2024-11-07 16:19:02,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-07 16:19:02,630 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 36 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:02,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 102 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-07 16:19:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2024-11-07 16:19:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 56 states have internal predecessors, (72), 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) [2024-11-07 16:19:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2024-11-07 16:19:02,639 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 13 [2024-11-07 16:19:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:02,639 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2024-11-07 16:19:02,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2024-11-07 16:19:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 16:19:02,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:02,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:02,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 16:19:02,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:02,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:02,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1863398777, now seen corresponding path program 1 times [2024-11-07 16:19:02,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:02,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727389493] [2024-11-07 16:19:02,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:02,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:02,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727389493] [2024-11-07 16:19:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727389493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:19:02,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128032645] [2024-11-07 16:19:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:02,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:19:02,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:02,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:19:02,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:19:02,837 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:02,905 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2024-11-07 16:19:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:19:02,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-11-07 16:19:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:02,906 INFO L225 Difference]: With dead ends: 54 [2024-11-07 16:19:02,906 INFO L226 Difference]: Without dead ends: 54 [2024-11-07 16:19:02,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:19:02,908 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:02,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-07 16:19:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-07 16:19:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 53 states have internal predecessors, (65), 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) [2024-11-07 16:19:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-07 16:19:02,915 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 13 [2024-11-07 16:19:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:02,915 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-07 16:19:02,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-07 16:19:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 16:19:02,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:02,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:02,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 16:19:02,916 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:02,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1863406942, now seen corresponding path program 1 times [2024-11-07 16:19:02,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:02,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530821077] [2024-11-07 16:19:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:02,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:02,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530821077] [2024-11-07 16:19:02,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530821077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:02,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:02,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:19:02,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379516058] [2024-11-07 16:19:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:02,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:19:02,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:02,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:19:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:02,966 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:02,984 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2024-11-07 16:19:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:19:02,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-07 16:19:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:02,986 INFO L225 Difference]: With dead ends: 54 [2024-11-07 16:19:02,986 INFO L226 Difference]: Without dead ends: 54 [2024-11-07 16:19:02,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:19:02,987 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:02,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-07 16:19:02,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-07 16:19:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 53 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) [2024-11-07 16:19:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2024-11-07 16:19:02,995 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 13 [2024-11-07 16:19:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:02,995 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2024-11-07 16:19:02,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-07 16:19:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2024-11-07 16:19:02,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-07 16:19:02,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:02,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:02,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 16:19:02,996 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:02,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:02,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1842884807, now seen corresponding path program 1 times [2024-11-07 16:19:02,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:02,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095071664] [2024-11-07 16:19:02,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:02,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:03,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:03,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095071664] [2024-11-07 16:19:03,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095071664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:03,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607893430] [2024-11-07 16:19:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:03,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:03,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:03,065 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) [2024-11-07 16:19:03,067 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 [2024-11-07 16:19:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:03,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 16:19:03,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:03,293 INFO L349 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2024-11-07 16:19:03,294 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 2 case distinctions, treesize of input 17 treesize of output 25 [2024-11-07 16:19:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:03,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:03,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607893430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:03,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:03,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 10 [2024-11-07 16:19:03,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741736613] [2024-11-07 16:19:03,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:03,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 16:19:03,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:03,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 16:19:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:19:03,528 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 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) [2024-11-07 16:19:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:03,574 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2024-11-07 16:19:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:19:03,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 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 18 [2024-11-07 16:19:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:03,575 INFO L225 Difference]: With dead ends: 55 [2024-11-07 16:19:03,575 INFO L226 Difference]: Without dead ends: 55 [2024-11-07 16:19:03,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:19:03,577 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 33 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:03,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 38 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-07 16:19:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 38. [2024-11-07 16:19:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.28125) internal successors, (41), 37 states have internal predecessors, (41), 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) [2024-11-07 16:19:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-11-07 16:19:03,579 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 18 [2024-11-07 16:19:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:03,579 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-11-07 16:19:03,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 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) [2024-11-07 16:19:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-11-07 16:19:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-07 16:19:03,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:03,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:03,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 16:19:03,782 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,SelfDestructingSolverStorable12 [2024-11-07 16:19:03,783 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:03,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1294854142, now seen corresponding path program 1 times [2024-11-07 16:19:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:03,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696815842] [2024-11-07 16:19:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:03,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:03,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696815842] [2024-11-07 16:19:03,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696815842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178324302] [2024-11-07 16:19:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:03,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:03,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:03,972 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) [2024-11-07 16:19:03,974 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 [2024-11-07 16:19:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:04,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 16:19:04,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:04,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 16:19:04,423 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 16:19:04,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:19:04,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 10 [2024-11-07 16:19:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:04,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:04,445 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 28 treesize of output 24 [2024-11-07 16:19:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178324302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:04,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:04,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 19 [2024-11-07 16:19:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216604287] [2024-11-07 16:19:04,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:04,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 16:19:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 16:19:04,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-11-07 16:19:04,749 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 states have internal predecessors, (43), 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) [2024-11-07 16:19:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:05,217 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-07 16:19:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 16:19:05,218 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-07 16:19:05,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:05,218 INFO L225 Difference]: With dead ends: 46 [2024-11-07 16:19:05,218 INFO L226 Difference]: Without dead ends: 46 [2024-11-07 16:19:05,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2024-11-07 16:19:05,219 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 67 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:05,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 84 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 16:19:05,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-07 16:19:05,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2024-11-07 16:19:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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) [2024-11-07 16:19:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-11-07 16:19:05,222 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 19 [2024-11-07 16:19:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:05,222 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-11-07 16:19:05,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 states have internal predecessors, (43), 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) [2024-11-07 16:19:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-11-07 16:19:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 16:19:05,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:05,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:05,240 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 [2024-11-07 16:19:05,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:05,423 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:05,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1485772647, now seen corresponding path program 1 times [2024-11-07 16:19:05,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:05,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575973021] [2024-11-07 16:19:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:05,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575973021] [2024-11-07 16:19:05,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575973021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053304161] [2024-11-07 16:19:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:05,602 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) [2024-11-07 16:19:05,604 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 [2024-11-07 16:19:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:05,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 16:19:05,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:05,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 16:19:05,966 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 16:19:05,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:19:05,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 12 [2024-11-07 16:19:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:05,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:06,000 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 28 treesize of output 24 [2024-11-07 16:19:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:06,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053304161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:06,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:06,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 13 [2024-11-07 16:19:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395897075] [2024-11-07 16:19:06,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:06,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 16:19:06,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 16:19:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 16:19:06,090 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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) [2024-11-07 16:19:06,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:06,274 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2024-11-07 16:19:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 16:19:06,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-07 16:19:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:06,275 INFO L225 Difference]: With dead ends: 40 [2024-11-07 16:19:06,275 INFO L226 Difference]: Without dead ends: 40 [2024-11-07 16:19:06,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-07 16:19:06,276 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:06,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 48 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-07 16:19:06,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2024-11-07 16:19:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.21875) internal successors, (39), 35 states have internal predecessors, (39), 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) [2024-11-07 16:19:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2024-11-07 16:19:06,278 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 20 [2024-11-07 16:19:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:06,279 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2024-11-07 16:19:06,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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) [2024-11-07 16:19:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2024-11-07 16:19:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 16:19:06,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:06,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:06,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 16:19:06,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:06,486 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:06,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1185688292, now seen corresponding path program 1 times [2024-11-07 16:19:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:06,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316629454] [2024-11-07 16:19:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:06,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:06,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:06,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316629454] [2024-11-07 16:19:06,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316629454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:06,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068204728] [2024-11-07 16:19:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:06,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:06,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:06,609 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) [2024-11-07 16:19:06,611 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 [2024-11-07 16:19:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:06,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 16:19:06,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:06,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 16:19:06,890 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 16:19:06,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:19:06,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 12 [2024-11-07 16:19:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:06,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:06,913 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 32 treesize of output 28 [2024-11-07 16:19:06,963 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-07 16:19:06,963 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 12 treesize of output 11 [2024-11-07 16:19:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:07,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068204728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:07,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:07,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 12 [2024-11-07 16:19:07,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44083054] [2024-11-07 16:19:07,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:07,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 16:19:07,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 16:19:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-07 16:19:07,014 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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) [2024-11-07 16:19:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:07,108 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-11-07 16:19:07,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 16:19:07,109 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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 21 [2024-11-07 16:19:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:07,110 INFO L225 Difference]: With dead ends: 39 [2024-11-07 16:19:07,110 INFO L226 Difference]: Without dead ends: 39 [2024-11-07 16:19:07,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-07 16:19:07,111 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:07,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:19:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-07 16:19:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2024-11-07 16:19:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.1875) internal successors, (38), 34 states have internal predecessors, (38), 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) [2024-11-07 16:19:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-07 16:19:07,113 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2024-11-07 16:19:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:07,113 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-07 16:19:07,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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) [2024-11-07 16:19:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-07 16:19:07,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 16:19:07,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:07,114 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:07,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 16:19:07,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 16:19:07,319 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:07,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:07,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2131949465, now seen corresponding path program 1 times [2024-11-07 16:19:07,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:07,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439344015] [2024-11-07 16:19:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:07,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:07,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439344015] [2024-11-07 16:19:07,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439344015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:07,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639153454] [2024-11-07 16:19:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:07,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:07,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:07,530 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) [2024-11-07 16:19:07,531 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 [2024-11-07 16:19:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:07,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 16:19:07,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:07,672 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 [2024-11-07 16:19:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:07,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:07,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639153454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:07,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:07,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-07 16:19:07,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136569630] [2024-11-07 16:19:07,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:07,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 16:19:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 16:19:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-07 16:19:07,888 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 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) [2024-11-07 16:19:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:08,324 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2024-11-07 16:19:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 16:19:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 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 21 [2024-11-07 16:19:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:08,326 INFO L225 Difference]: With dead ends: 134 [2024-11-07 16:19:08,326 INFO L226 Difference]: Without dead ends: 134 [2024-11-07 16:19:08,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2024-11-07 16:19:08,327 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 145 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:08,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 187 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 16:19:08,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-07 16:19:08,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 86. [2024-11-07 16:19:08,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 85 states have internal predecessors, (100), 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) [2024-11-07 16:19:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 100 transitions. [2024-11-07 16:19:08,330 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 100 transitions. Word has length 21 [2024-11-07 16:19:08,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:08,330 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 100 transitions. [2024-11-07 16:19:08,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 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) [2024-11-07 16:19:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 100 transitions. [2024-11-07 16:19:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 16:19:08,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:08,331 INFO L215 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] [2024-11-07 16:19:08,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 16:19:08,534 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,SelfDestructingSolverStorable16 [2024-11-07 16:19:08,535 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:08,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1898368516, now seen corresponding path program 1 times [2024-11-07 16:19:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:08,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046999402] [2024-11-07 16:19:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:08,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:08,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046999402] [2024-11-07 16:19:08,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046999402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:08,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693839073] [2024-11-07 16:19:08,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:08,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:08,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:08,903 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) [2024-11-07 16:19:08,904 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 [2024-11-07 16:19:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:08,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-07 16:19:08,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:09,126 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 16:19:09,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2024-11-07 16:19:09,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 16:19:09,594 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 16:19:09,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-07 16:19:09,685 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#a~0#1.base_18| Int) (|v_ULTIMATE.start_#Ultimate.C_realloc_ptr#1.base_18| Int) (|v_ULTIMATE.start_main_#t~mem8#1.base_12| Int)) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#a~0#1.base_18| 1))) (and (= (select .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_ptr#1.base_18|) 0) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#a~0#1.base_18|) 0) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_#Ultimate.C_realloc_ptr#1.base_18| 0) |v_ULTIMATE.start_main_#t~mem8#1.base_12| 0) |v_ULTIMATE.start_main_~#a~0#1.base_18| 0) |c_#valid|) (= (select (store .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_ptr#1.base_18| 0) |v_ULTIMATE.start_main_#t~mem8#1.base_12|) 0)))) is different from true [2024-11-07 16:19:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:09,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:09,715 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 48 treesize of output 44 [2024-11-07 16:19:26,275 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (store |c_#valid| |c_ULTIMATE.start_#Ultimate.C_realloc_ptr#1.base| 0))) (let ((.cse2 (= |c_ULTIMATE.start_expandArray_~pointer#1.base| |c_ULTIMATE.start_main_~#a~0#1.base|)) (.cse4 (forall ((v_ArrVal_378 Int) (v_antiDerIndex_entry0_1 Int) (|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int) (v_arrayElimCell_15 Int)) (or (= (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1) (select (store (store (store .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| v_ArrVal_378) v_arrayElimCell_15 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)) (not (= (select .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0))))) (.cse0 (= |c_ULTIMATE.start_main_~#a~0#1.offset| |c_ULTIMATE.start_expandArray_~pointer#1.offset|))) (and (or (not .cse0) (forall ((v_antiDerIndex_entry0_1 Int) (|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int)) (or (= (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1) (select (store (store .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)) (not (= (select .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0)))) (not .cse2)) (forall ((|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int)) (or (not (= (select .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0)) (forall ((v_ArrVal_378 Int) (v_antiDerIndex_entry0_1 Int)) (let ((.cse3 (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1))) (or (= .cse3 (select (store (store .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)) (forall ((v_arrayElimCell_15 Int)) (= .cse3 (select (store (store (store .cse1 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| v_ArrVal_378) v_arrayElimCell_15 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)))))))) (or .cse2 .cse4) (or .cse4 .cse0)))) is different from false [2024-11-07 16:19:30,347 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#valid| |c_ULTIMATE.start_expandArray_#t~mem2#1.base| 0))) (let ((.cse2 (= |c_ULTIMATE.start_main_~#a~0#1.offset| |c_ULTIMATE.start_expandArray_~pointer#1.offset|)) (.cse3 (= |c_ULTIMATE.start_expandArray_~pointer#1.base| |c_ULTIMATE.start_main_~#a~0#1.base|)) (.cse4 (forall ((v_ArrVal_378 Int) (v_antiDerIndex_entry0_1 Int) (|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int) (v_arrayElimCell_15 Int)) (or (not (= (select .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0)) (= (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1) (select (store (store (store .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| v_ArrVal_378) v_arrayElimCell_15 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)))))) (and (forall ((|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int)) (or (not (= (select .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0)) (forall ((v_ArrVal_378 Int) (v_antiDerIndex_entry0_1 Int)) (let ((.cse1 (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1))) (or (= .cse1 (select (store (store .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)) (forall ((v_arrayElimCell_15 Int)) (= .cse1 (select (store (store (store .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| v_ArrVal_378) v_arrayElimCell_15 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1)))))))) (or (not .cse2) (not .cse3) (forall ((v_antiDerIndex_entry0_1 Int) (|v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| Int)) (or (not (= (select .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22|) 0)) (= (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1) (select (store (store .cse0 |v_ULTIMATE.start_#Ultimate.C_realloc_#res#1.base_22| 0) |c_ULTIMATE.start_main_~#a~0#1.base| 0) v_antiDerIndex_entry0_1))))) (or .cse2 .cse4) (or .cse3 .cse4)))) is different from false [2024-11-07 16:19:30,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:19:30,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 177 [2024-11-07 16:19:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693839073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:31,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 25 [2024-11-07 16:19:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962813618] [2024-11-07 16:19:31,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:31,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 16:19:31,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 16:19:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=438, Unknown=6, NotChecked=132, Total=650 [2024-11-07 16:19:31,522 INFO L87 Difference]: Start difference. First operand 86 states and 100 transitions. Second operand has 26 states, 25 states have (on average 2.16) internal successors, (54), 26 states have internal predecessors, (54), 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) [2024-11-07 16:19:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:32,420 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2024-11-07 16:19:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 16:19:32,421 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.16) internal successors, (54), 26 states have internal predecessors, (54), 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 22 [2024-11-07 16:19:32,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:32,422 INFO L225 Difference]: With dead ends: 141 [2024-11-07 16:19:32,422 INFO L226 Difference]: Without dead ends: 134 [2024-11-07 16:19:32,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=111, Invalid=597, Unknown=6, NotChecked=156, Total=870 [2024-11-07 16:19:32,424 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:32,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 107 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 302 Invalid, 0 Unknown, 110 Unchecked, 0.5s Time] [2024-11-07 16:19:32,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-07 16:19:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-07 16:19:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 131 states have (on average 1.1755725190839694) internal successors, (154), 133 states have internal predecessors, (154), 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) [2024-11-07 16:19:32,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2024-11-07 16:19:32,429 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 22 [2024-11-07 16:19:32,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:32,429 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2024-11-07 16:19:32,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.16) internal successors, (54), 26 states have internal predecessors, (54), 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) [2024-11-07 16:19:32,429 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2024-11-07 16:19:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 16:19:32,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:32,434 INFO L215 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] [2024-11-07 16:19:32,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 16:19:32,634 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,SelfDestructingSolverStorable17 [2024-11-07 16:19:32,635 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash -887251266, now seen corresponding path program 1 times [2024-11-07 16:19:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582451733] [2024-11-07 16:19:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:32,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:32,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582451733] [2024-11-07 16:19:32,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582451733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:32,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:32,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 16:19:32,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657633551] [2024-11-07 16:19:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:32,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:19:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:32,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:19:32,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:19:32,765 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-07 16:19:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:32,829 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2024-11-07 16:19:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:19:32,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2024-11-07 16:19:32,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:32,830 INFO L225 Difference]: With dead ends: 121 [2024-11-07 16:19:32,830 INFO L226 Difference]: Without dead ends: 121 [2024-11-07 16:19:32,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-07 16:19:32,831 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:32,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 58 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:32,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-07 16:19:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-07 16:19:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1610169491525424) internal successors, (137), 120 states have internal predecessors, (137), 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) [2024-11-07 16:19:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2024-11-07 16:19:32,836 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 22 [2024-11-07 16:19:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:32,836 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2024-11-07 16:19:32,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-07 16:19:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2024-11-07 16:19:32,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-07 16:19:32,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:32,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:32,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 16:19:32,837 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:32,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:32,837 INFO L85 PathProgramCache]: Analyzing trace with hash 151632784, now seen corresponding path program 1 times [2024-11-07 16:19:32,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:32,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562554660] [2024-11-07 16:19:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:32,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:32,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:32,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562554660] [2024-11-07 16:19:32,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562554660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:19:32,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:19:32,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 16:19:32,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022973727] [2024-11-07 16:19:32,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:19:32,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 16:19:32,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:32,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 16:19:32,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 16:19:32,980 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2024-11-07 16:19:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:33,048 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2024-11-07 16:19:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 16:19:33,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 31 [2024-11-07 16:19:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:33,050 INFO L225 Difference]: With dead ends: 58 [2024-11-07 16:19:33,050 INFO L226 Difference]: Without dead ends: 58 [2024-11-07 16:19:33,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:19:33,051 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:33,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:19:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-07 16:19:33,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-07 16:19:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 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) [2024-11-07 16:19:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2024-11-07 16:19:33,054 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 31 [2024-11-07 16:19:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:33,054 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2024-11-07 16:19:33,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2024-11-07 16:19:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2024-11-07 16:19:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 16:19:33,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:33,058 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:33,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 16:19:33,058 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:33,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:33,058 INFO L85 PathProgramCache]: Analyzing trace with hash -521146393, now seen corresponding path program 2 times [2024-11-07 16:19:33,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:33,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065695635] [2024-11-07 16:19:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065695635] [2024-11-07 16:19:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065695635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296241249] [2024-11-07 16:19:33,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 16:19:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:33,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:33,555 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) [2024-11-07 16:19:33,557 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 [2024-11-07 16:19:33,730 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 16:19:33,731 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:19:33,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 16:19:33,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:33,835 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 [2024-11-07 16:19:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:33,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:34,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296241249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:34,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:34,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-11-07 16:19:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383447022] [2024-11-07 16:19:34,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:34,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 16:19:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:34,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 16:19:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-11-07 16:19:34,374 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 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) [2024-11-07 16:19:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:35,980 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2024-11-07 16:19:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-07 16:19:35,981 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 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 57 [2024-11-07 16:19:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:35,981 INFO L225 Difference]: With dead ends: 133 [2024-11-07 16:19:35,981 INFO L226 Difference]: Without dead ends: 133 [2024-11-07 16:19:35,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1164 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=876, Invalid=3414, Unknown=0, NotChecked=0, Total=4290 [2024-11-07 16:19:35,986 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 88 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:35,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 172 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 16:19:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-07 16:19:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2024-11-07 16:19:35,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.0077519379844961) internal successors, (130), 129 states have internal predecessors, (130), 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) [2024-11-07 16:19:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2024-11-07 16:19:35,990 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 57 [2024-11-07 16:19:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:35,991 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2024-11-07 16:19:35,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 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) [2024-11-07 16:19:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2024-11-07 16:19:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-07 16:19:35,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:19:35,993 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:36,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 16:19:36,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:36,198 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-07 16:19:36,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:19:36,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1659076889, now seen corresponding path program 3 times [2024-11-07 16:19:36,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:19:36,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456843325] [2024-11-07 16:19:36,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:19:36,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:19:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:19:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 793 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:19:37,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:19:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456843325] [2024-11-07 16:19:37,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456843325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:19:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896724500] [2024-11-07 16:19:37,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 16:19:37,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:37,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:19:37,536 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) [2024-11-07 16:19:37,539 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 [2024-11-07 16:19:37,743 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 16:19:37,743 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:19:37,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 16:19:37,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:19:38,155 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 [2024-11-07 16:19:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 73 proven. 78 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-07 16:19:38,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:19:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-07 16:19:39,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896724500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:19:39,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:19:39,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 9] total 35 [2024-11-07 16:19:39,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432418181] [2024-11-07 16:19:39,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:19:39,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 16:19:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:19:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 16:19:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 16:19:39,065 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand has 36 states, 35 states have (on average 5.114285714285714) internal successors, (179), 36 states have internal predecessors, (179), 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) [2024-11-07 16:19:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:19:41,559 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2024-11-07 16:19:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-07 16:19:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.114285714285714) internal successors, (179), 36 states have internal predecessors, (179), 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 129 [2024-11-07 16:19:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:19:41,560 INFO L225 Difference]: With dead ends: 141 [2024-11-07 16:19:41,560 INFO L226 Difference]: Without dead ends: 0 [2024-11-07 16:19:41,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1942 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=964, Invalid=8348, Unknown=0, NotChecked=0, Total=9312 [2024-11-07 16:19:41,564 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 139 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:19:41,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 609 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 16:19:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-07 16:19:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-07 16:19:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-07 16:19:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-07 16:19:41,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2024-11-07 16:19:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:19:41,565 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 16:19:41,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.114285714285714) internal successors, (179), 36 states have internal predecessors, (179), 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) [2024-11-07 16:19:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-07 16:19:41,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-07 16:19:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE (3 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE (2 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE (1 of 14 remaining) [2024-11-07 16:19:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2024-11-07 16:19:41,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 16:19:41,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:19:41,771 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:19:41,773 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 16:19:41,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:19:41 BoogieIcfgContainer [2024-11-07 16:19:41,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 16:19:41,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 16:19:41,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 16:19:41,777 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 16:19:41,778 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:00" (3/4) ... [2024-11-07 16:19:41,780 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 16:19:41,787 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-07 16:19:41,787 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-07 16:19:41,787 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 16:19:41,862 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 16:19:41,863 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 16:19:41,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 16:19:41,865 INFO L158 Benchmark]: Toolchain (without parser) took 42480.85ms. Allocated memory was 100.7MB in the beginning and 285.2MB in the end (delta: 184.5MB). Free memory was 75.9MB in the beginning and 158.5MB in the end (delta: -82.6MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2024-11-07 16:19:41,865 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 16:19:41,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.08ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 59.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 16:19:41,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.20ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 57.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 16:19:41,866 INFO L158 Benchmark]: Boogie Preprocessor took 56.99ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 56.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 16:19:41,867 INFO L158 Benchmark]: RCFGBuilder took 379.85ms. Allocated memory is still 100.7MB. Free memory was 56.0MB in the beginning and 41.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 16:19:41,867 INFO L158 Benchmark]: TraceAbstraction took 41536.45ms. Allocated memory was 100.7MB in the beginning and 285.2MB in the end (delta: 184.5MB). Free memory was 40.8MB in the beginning and 162.7MB in the end (delta: -121.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-11-07 16:19:41,867 INFO L158 Benchmark]: Witness Printer took 86.19ms. Allocated memory is still 285.2MB. Free memory was 162.7MB in the beginning and 158.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 16:19:41,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.08ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 59.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.20ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 57.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.99ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 56.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.85ms. Allocated memory is still 100.7MB. Free memory was 56.0MB in the beginning and 41.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 41536.45ms. Allocated memory was 100.7MB in the beginning and 285.2MB in the end (delta: 184.5MB). Free memory was 40.8MB in the beginning and 162.7MB in the end (delta: -121.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 86.19ms. Allocated memory is still 285.2MB. Free memory was 162.7MB in the beginning and 158.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 581]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 581]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 581]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 570]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 41.5s, OverallIterations: 22, TraceHistogramMax: 14, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 816 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 816 mSDsluCounter, 2195 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 110 IncrementalHoareTripleChecker+Unchecked, 1679 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4777 IncrementalHoareTripleChecker+Invalid, 4991 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 516 mSDtfsCounter, 4777 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 881 GetRequests, 535 SyntacticMatches, 6 SemanticMatches, 340 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3759 ImplicationChecksByTransitivity, 26.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=18, InterpolantAutomatonStates: 267, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 148 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 30.4s InterpolantComputationTime, 772 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1041 ConstructedInterpolants, 41 QuantifiedInterpolants, 9216 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1664 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 38 InterpolantComputations, 14 PerfectInterpolantSequences, 1369/2802 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 16:19:41,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE