./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml', '-i', '../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa'] 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:39:19,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:39:19,853 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:39:19,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:39:19,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:39:19,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:39:19,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:39:19,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:39:19,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:39:19,893 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:39:19,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:39:19,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:39:19,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:39:19,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:39:19,895 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:39:19,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:39:19,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:39:19,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:39:19,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:39:19,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:39:19,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:39:19,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:39:19,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:39:19,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:39:19,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:39:19,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:39:19,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:39:19,899 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 ! call(reach_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa [2024-11-07 11:39:20,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:39:20,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:39:20,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:39:20,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:39:20,308 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:39:20,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2024-11-07 11:39:21,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:39:22,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:39:22,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2024-11-07 11:39:22,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/11545534b/4f931e5b99fc4f6ca84822e012c92f8e/FLAGcb36a6e7c [2024-11-07 11:39:22,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/11545534b/4f931e5b99fc4f6ca84822e012c92f8e [2024-11-07 11:39:22,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:39:22,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:39:22,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:39:22,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:39:22,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:39:22,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:22" (1/1) ... [2024-11-07 11:39:22,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aa3957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:22, skipping insertion in model container [2024-11-07 11:39:22,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:22" (1/1) ... [2024-11-07 11:39:22,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:39:22,605 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2024-11-07 11:39:22,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2024-11-07 11:39:23,410 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,414 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,415 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,428 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,429 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,430 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,431 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,432 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,433 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,433 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,433 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,838 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:39:23,873 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:39:23,889 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2024-11-07 11:39:23,892 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2024-11-07 11:39:23,963 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,963 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,964 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,965 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,965 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,972 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,973 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,974 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,974 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:23,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:24,052 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:24,095 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:39:24,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:39:24,248 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:39:24,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24 WrapperNode [2024-11-07 11:39:24,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:39:24,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:39:24,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:39:24,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:39:24,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,367 INFO L138 Inliner]: procedures = 670, calls = 1248, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 162 [2024-11-07 11:39:24,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:39:24,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:39:24,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:39:24,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:39:24,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,414 INFO L175 MemorySlicer]: Split 45 memory accesses to 5 slices as follows [2, 4, 5, 28, 6]. 62 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 5, 6, 0]. The 7 writes are split as follows [0, 0, 0, 5, 2]. [2024-11-07 11:39:24,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:39:24,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:39:24,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:39:24,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:39:24,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (1/1) ... [2024-11-07 11:39:24,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:39:24,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:39:24,522 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 11:39:24,529 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 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-07 11:39:24,549 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-07 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:39:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-07 11:39:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:39:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:39:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:39:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:39:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:39:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:39:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-07 11:39:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-07 11:39:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-07 11:39:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-07 11:39:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-07 11:39:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-07 11:39:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:39:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:39:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:39:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:39:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:39:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-07 11:39:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-07 11:39:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-07 11:39:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-07 11:39:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:39:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:39:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:39:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:39:24,824 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:39:24,828 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:39:25,251 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-07 11:39:25,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:39:25,262 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:39:25,265 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:39:25,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:25 BoogieIcfgContainer [2024-11-07 11:39:25,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:39:25,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:39:25,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:39:25,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:39:25,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:39:22" (1/3) ... [2024-11-07 11:39:25,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278ae3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:25, skipping insertion in model container [2024-11-07 11:39:25,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:24" (2/3) ... [2024-11-07 11:39:25,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278ae3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:25, skipping insertion in model container [2024-11-07 11:39:25,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:25" (3/3) ... [2024-11-07 11:39:25,273 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2024-11-07 11:39:25,286 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:39:25,287 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:39:25,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:39:25,354 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a8cded8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:39:25,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:39:25,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-07 11:39:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 11:39:25,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:25,370 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:39:25,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:25,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1380798734, now seen corresponding path program 1 times [2024-11-07 11:39:25,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:25,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558743902] [2024-11-07 11:39:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:39:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:39:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:39:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 11:39:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 11:39:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:39:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:39:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 11:39:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 11:39:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:39:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 11:39:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 11:39:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 11:39:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-07 11:39:26,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:39:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558743902] [2024-11-07 11:39:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558743902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:39:26,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:39:26,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 11:39:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349995814] [2024-11-07 11:39:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:39:26,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 11:39:26,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:39:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 11:39:26,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 11:39:26,744 INFO L87 Difference]: Start difference. First operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-07 11:39:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:39:27,438 INFO L93 Difference]: Finished difference Result 221 states and 305 transitions. [2024-11-07 11:39:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 11:39:27,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 99 [2024-11-07 11:39:27,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:39:27,447 INFO L225 Difference]: With dead ends: 221 [2024-11-07 11:39:27,447 INFO L226 Difference]: Without dead ends: 105 [2024-11-07 11:39:27,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:39:27,452 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 117 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 11:39:27,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 349 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 11:39:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-07 11:39:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-07 11:39:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 63 states have internal predecessors, (69), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 11:39:27,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2024-11-07 11:39:27,501 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 99 [2024-11-07 11:39:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:39:27,503 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2024-11-07 11:39:27,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-07 11:39:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2024-11-07 11:39:27,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-07 11:39:27,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:27,509 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:39:27,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:39:27,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:27,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:27,510 INFO L85 PathProgramCache]: Analyzing trace with hash 254287568, now seen corresponding path program 1 times [2024-11-07 11:39:27,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:27,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547082002] [2024-11-07 11:39:27,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:39:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:39:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:39:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 11:39:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 11:39:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:29,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:39:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:39:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 11:39:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 11:39:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:39:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 11:39:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 11:39:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 11:39:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:30,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:31,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-07 11:39:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:39:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547082002] [2024-11-07 11:39:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547082002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:39:31,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:39:31,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 11:39:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307394874] [2024-11-07 11:39:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:39:31,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 11:39:31,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:39:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 11:39:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-07 11:39:31,149 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-07 11:39:32,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:39:32,648 INFO L93 Difference]: Finished difference Result 176 states and 217 transitions. [2024-11-07 11:39:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 11:39:32,649 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 114 [2024-11-07 11:39:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:39:32,653 INFO L225 Difference]: With dead ends: 176 [2024-11-07 11:39:32,653 INFO L226 Difference]: Without dead ends: 109 [2024-11-07 11:39:32,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2024-11-07 11:39:32,655 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 110 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 11:39:32,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 490 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 11:39:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-07 11:39:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-07 11:39:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 64 states have (on average 1.109375) internal successors, (71), 66 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-07 11:39:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-11-07 11:39:32,681 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 114 [2024-11-07 11:39:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:39:32,682 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-11-07 11:39:32,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-07 11:39:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-11-07 11:39:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 11:39:32,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:32,687 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:39:32,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:39:32,688 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:32,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash -303983254, now seen corresponding path program 1 times [2024-11-07 11:39:32,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:32,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570273636] [2024-11-07 11:39:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:32,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 11:39:32,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858494107] [2024-11-07 11:39:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:39:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:39:32,913 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 11:39:32,915 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 11:39:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:33,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-11-07 11:39:33,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:39:33,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 11:39:33,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2024-11-07 11:39:37,851 INFO L349 Elim1Store]: treesize reduction 226, result has 21.3 percent of original size [2024-11-07 11:39:37,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 137 treesize of output 188 [2024-11-07 11:39:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-07 11:39:38,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:39:39,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:39:39,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570273636] [2024-11-07 11:39:39,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 11:39:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858494107] [2024-11-07 11:39:39,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858494107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:39:39,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:39:39,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-07 11:39:39,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396414790] [2024-11-07 11:39:39,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 11:39:39,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 11:39:39,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:39:39,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 11:39:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=637, Unknown=2, NotChecked=0, Total=702 [2024-11-07 11:39:39,910 INFO L87 Difference]: Start difference. First operand 108 states and 136 transitions. Second operand has 23 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-07 11:39:46,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 11:39:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:39:56,225 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions. [2024-11-07 11:39:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 11:39:56,226 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 116 [2024-11-07 11:39:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:39:56,230 INFO L225 Difference]: With dead ends: 140 [2024-11-07 11:39:56,230 INFO L226 Difference]: Without dead ends: 138 [2024-11-07 11:39:56,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=194, Invalid=2057, Unknown=5, NotChecked=0, Total=2256 [2024-11-07 11:39:56,232 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 172 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 128 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-07 11:39:56,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 785 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1564 Invalid, 7 Unknown, 0 Unchecked, 6.2s Time] [2024-11-07 11:39:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-07 11:39:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 125. [2024-11-07 11:39:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.12987012987013) internal successors, (87), 80 states have internal predecessors, (87), 34 states have call successors, (34), 11 states have call predecessors, (34), 13 states have return successors, (38), 33 states have call predecessors, (38), 32 states have call successors, (38) [2024-11-07 11:39:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 159 transitions. [2024-11-07 11:39:56,263 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 159 transitions. Word has length 116 [2024-11-07 11:39:56,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:39:56,264 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 159 transitions. [2024-11-07 11:39:56,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-07 11:39:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 159 transitions. [2024-11-07 11:39:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 11:39:56,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:56,267 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:39:56,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 11:39:56,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:39:56,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:56,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash 376075116, now seen corresponding path program 1 times [2024-11-07 11:39:56,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526732046] [2024-11-07 11:39:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:56,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:39:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:39:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:39:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 11:39:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 11:39:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:39:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:39:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 11:39:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 11:39:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:39:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 11:39:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 11:39:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 11:39:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-07 11:39:57,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:39:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526732046] [2024-11-07 11:39:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526732046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:39:57,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:39:57,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 11:39:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580075843] [2024-11-07 11:39:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:39:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:39:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:39:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:39:57,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:39:57,367 INFO L87 Difference]: Start difference. First operand 125 states and 159 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-07 11:39:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:39:57,862 INFO L93 Difference]: Finished difference Result 219 states and 274 transitions. [2024-11-07 11:39:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 11:39:57,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2024-11-07 11:39:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:39:57,865 INFO L225 Difference]: With dead ends: 219 [2024-11-07 11:39:57,865 INFO L226 Difference]: Without dead ends: 137 [2024-11-07 11:39:57,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 11:39:57,867 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 77 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 11:39:57,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 314 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 11:39:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-07 11:39:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2024-11-07 11:39:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.144578313253012) internal successors, (95), 86 states have internal predecessors, (95), 34 states have call successors, (34), 11 states have call predecessors, (34), 13 states have return successors, (38), 33 states have call predecessors, (38), 32 states have call successors, (38) [2024-11-07 11:39:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 167 transitions. [2024-11-07 11:39:57,897 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 167 transitions. Word has length 116 [2024-11-07 11:39:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:39:57,899 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 167 transitions. [2024-11-07 11:39:57,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-07 11:39:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 167 transitions. [2024-11-07 11:39:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-07 11:39:57,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:57,901 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:39:57,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:39:57,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:57,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:57,902 INFO L85 PathProgramCache]: Analyzing trace with hash 634240554, now seen corresponding path program 1 times [2024-11-07 11:39:57,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:57,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475941939] [2024-11-07 11:39:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:57,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 11:39:58,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769498604] [2024-11-07 11:39:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:58,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:39:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:39:58,139 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 11:39:58,141 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 11:39:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:58,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-11-07 11:39:58,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:39:58,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 11:39:58,979 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-07 11:39:58,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-07 11:39:59,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-07 11:39:59,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 11:39:59,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 11:39:59,381 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-07 11:39:59,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-07 11:39:59,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-07 11:39:59,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2024-11-07 11:40:14,994 INFO L349 Elim1Store]: treesize reduction 114, result has 27.4 percent of original size [2024-11-07 11:40:14,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 197 [2024-11-07 11:40:15,063 INFO L349 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2024-11-07 11:40:15,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 154 [2024-11-07 11:40:15,094 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2024-11-07 11:40:15,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 155 [2024-11-07 11:40:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 6 proven. 131 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-07 11:40:15,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:40:17,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:40:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475941939] [2024-11-07 11:40:17,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 11:40:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769498604] [2024-11-07 11:40:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769498604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:40:17,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:40:17,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-07 11:40:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138309734] [2024-11-07 11:40:17,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 11:40:17,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-07 11:40:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:40:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-07 11:40:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1096, Unknown=3, NotChecked=0, Total=1190 [2024-11-07 11:40:17,334 INFO L87 Difference]: Start difference. First operand 131 states and 167 transitions. Second operand has 31 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 25 states have internal predecessors, (60), 10 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-07 11:40:34,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 11:40:38,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-07 11:40:42,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]