./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.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_clear_harness_negated.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', '9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1'] 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_clear_harness_negated.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 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:37:39,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:37:39,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:37:39,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:37:39,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:37:40,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:37:40,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:37:40,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:37:40,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:37:40,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:37:40,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:37:40,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:37:40,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:37:40,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:37:40,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:37:40,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:37:40,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:37:40,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:37:40,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:37:40,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:37:40,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:37:40,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:37:40,021 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 -> 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 [2024-11-07 11:37:40,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:37:40,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:37:40,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:37:40,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:37:40,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:37:40,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-07 11:37:41,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:37:42,030 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:37:42,031 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-07 11:37:42,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/49f1b556a/1a89cf51d2c94fa3a87cd79e6d6ba534/FLAG619ffffc9 [2024-11-07 11:37:42,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/49f1b556a/1a89cf51d2c94fa3a87cd79e6d6ba534 [2024-11-07 11:37:42,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:37:42,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:37:42,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:37:42,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:37:42,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:37:42,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:42" (1/1) ... [2024-11-07 11:37:42,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54607eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:42, skipping insertion in model container [2024-11-07 11:37:42,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:42" (1/1) ... [2024-11-07 11:37:42,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:37:42,435 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_clear_harness_negated.i[4494,4507] [2024-11-07 11:37:42,447 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_clear_harness_negated.i[4554,4567] [2024-11-07 11:37:43,083 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,084 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,085 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,086 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,087 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,107 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,108 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,116 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,117 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,118 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,119 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,499 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,507 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:37:43,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:37:43,630 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_clear_harness_negated.i[4494,4507] [2024-11-07 11:37:43,634 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_clear_harness_negated.i[4554,4567] [2024-11-07 11:37:43,711 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,712 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,712 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,712 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,713 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,720 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,720 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,721 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,722 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,723 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,723 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,723 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,724 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,858 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:43,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2024-11-07 11:37:43,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:37:44,073 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:37:44,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44 WrapperNode [2024-11-07 11:37:44,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:37:44,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:37:44,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:37:44,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:37:44,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,215 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-07 11:37:44,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:37:44,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:37:44,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:37:44,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:37:44,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,297 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 9, 238, 3, 5, 34]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 5, 6, 1, 5, 5]. The 237 writes are split as follows [0, 0, 232, 1, 0, 4]. [2024-11-07 11:37:44,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:37:44,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:37:44,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:37:44,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:37:44,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (1/1) ... [2024-11-07 11:37:44,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:37:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:37:44,397 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 11:37:44,403 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 11:37:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:37:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-07 11:37:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-07 11:37:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-07 11:37:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-07 11:37:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:37:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:37:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:37:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:37:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:37:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:37:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:37:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 11:37:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:37:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:37:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:37:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:37:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:37:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:37:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-07 11:37:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-07 11:37:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:37:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:37:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:37:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:37:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-07 11:37:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:37:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-07 11:37:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:37:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-07 11:37:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-07 11:37:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:37:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:37:44,720 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:37:44,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:37:50,735 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-07 11:37:50,736 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:37:50,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:37:50,749 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:37:50,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:50 BoogieIcfgContainer [2024-11-07 11:37:50,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:37:50,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:37:50,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:37:50,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:37:50,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:37:42" (1/3) ... [2024-11-07 11:37:50,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c20d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:50, skipping insertion in model container [2024-11-07 11:37:50,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:44" (2/3) ... [2024-11-07 11:37:50,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c20d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:50, skipping insertion in model container [2024-11-07 11:37:50,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:50" (3/3) ... [2024-11-07 11:37:50,761 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness_negated.i [2024-11-07 11:37:50,775 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:37:50,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:37:50,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:37:50,849 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;@3b724788, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:37:50,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:37:50,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 11:37:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 11:37:50,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:37:50,864 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:37:50,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:37:50,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:37:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1818819730, now seen corresponding path program 1 times [2024-11-07 11:37:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:37:50,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248213850] [2024-11-07 11:37:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:37:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:37:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:56,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:37:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:37:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:56,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 11:37:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:56,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 11:37:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 11:37:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 11:37:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:37:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 11:37:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 11:37:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:37:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-07 11:37:57,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:37:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248213850] [2024-11-07 11:37:57,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248213850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:37:57,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:37:57,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:37:57,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920637395] [2024-11-07 11:37:57,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:37:57,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:37:57,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:37:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:37:57,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:37:57,330 INFO L87 Difference]: Start difference. First operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-07 11:38:01,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:38:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:38:03,264 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-07 11:38:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:38:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-07 11:38:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:38:03,272 INFO L225 Difference]: With dead ends: 205 [2024-11-07 11:38:03,272 INFO L226 Difference]: Without dead ends: 106 [2024-11-07 11:38:03,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:38:03,277 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-07 11:38:03,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-07 11:38:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-07 11:38:03,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-07 11:38:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 11:38:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-07 11:38:03,317 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-07 11:38:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:38:03,317 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-07 11:38:03,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-07 11:38:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-07 11:38:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 11:38:03,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:38:03,324 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:38:03,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:38:03,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:38:03,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:38:03,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1417756758, now seen corresponding path program 1 times [2024-11-07 11:38:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:38:03,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009608233] [2024-11-07 11:38:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:03,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:38:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:38:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 11:38:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 11:38:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 11:38:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:10,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 11:38:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:10,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:38:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:10,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 11:38:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:10,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 11:38:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 11:38:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:38:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009608233] [2024-11-07 11:38:10,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009608233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:38:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352244761] [2024-11-07 11:38:10,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:10,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:38:10,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:38:10,098 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 11:38:10,100 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 11:38:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:15,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 11:38:15,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:38:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 11:38:16,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 11:38:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352244761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:38:16,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:38:16,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-07 11:38:16,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269022475] [2024-11-07 11:38:16,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:38:16,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:38:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:38:16,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:38:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-07 11:38:16,671 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-07 11:38:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:38:19,071 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-07 11:38:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:38:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-07 11:38:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:38:19,073 INFO L225 Difference]: With dead ends: 160 [2024-11-07 11:38:19,073 INFO L226 Difference]: Without dead ends: 98 [2024-11-07 11:38:19,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:38:19,075 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 123 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 11:38:19,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 305 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 11:38:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-07 11:38:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-07 11:38:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-07 11:38:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-07 11:38:19,101 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-07 11:38:19,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:38:19,102 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-07 11:38:19,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-07 11:38:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-07 11:38:19,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 11:38:19,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:38:19,104 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2024-11-07 11:38:19,134 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 11:38:19,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:38:19,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:38:19,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:38:19,306 INFO L85 PathProgramCache]: Analyzing trace with hash -270811530, now seen corresponding path program 1 times [2024-11-07 11:38:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:38:19,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341919699] [2024-11-07 11:38:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:19,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:38:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:24,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:24,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:38:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:24,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 11:38:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:24,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 11:38:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:25,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 11:38:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:25,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:25,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:38:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:25,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 11:38:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:25,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 11:38:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:26,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-07 11:38:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:26,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 11:38:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 11:38:26,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:38:26,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341919699] [2024-11-07 11:38:26,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341919699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:38:26,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710250632] [2024-11-07 11:38:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:26,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:38:26,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:38:26,300 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 11:38:26,302 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 11:38:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:31,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 11:38:31,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:38:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 11:38:33,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 11:38:33,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710250632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:38:33,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:38:33,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-07 11:38:33,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63288158] [2024-11-07 11:38:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:38:33,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:38:33,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:38:33,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:38:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-07 11:38:33,550 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-07 11:38:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:38:37,557 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-07 11:38:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 11:38:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2024-11-07 11:38:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:38:37,559 INFO L225 Difference]: With dead ends: 157 [2024-11-07 11:38:37,559 INFO L226 Difference]: Without dead ends: 96 [2024-11-07 11:38:37,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-07 11:38:37,561 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 128 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-07 11:38:37,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 434 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-07 11:38:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-07 11:38:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-07 11:38:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 11:38:37,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-07 11:38:37,572 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-07 11:38:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:38:37,573 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-07 11:38:37,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-07 11:38:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-07 11:38:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 11:38:37,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:38:37,575 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:38:37,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 11:38:37,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:38:37,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:38:37,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:38:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1423335052, now seen corresponding path program 1 times [2024-11-07 11:38:37,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:38:37,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100620868] [2024-11-07 11:38:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:37,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:38:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:52,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:38:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:52,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 11:38:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:52,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 11:38:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:52,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 11:38:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:38:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 11:38:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 11:38:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:38:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 11:38:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 11:38:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:38:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-07 11:38:53,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:38:53,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100620868] [2024-11-07 11:38:53,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100620868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:38:53,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:38:53,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 11:38:53,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197790286] [2024-11-07 11:38:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:38:53,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 11:38:53,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:38:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 11:38:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 11:38:53,230 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 6 states have internal predecessors, (36), 5 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-07 11:38:57,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:39:01,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []