./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_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_byte_buf_eq_ignore_case_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', '378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9'] 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_byte_buf_eq_ignore_case_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 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:44:01,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:44:01,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:44:01,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:44:01,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:44:02,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:44:02,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:44:02,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:44:02,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:44:02,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:44:02,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:44:02,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:44:02,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:44:02,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:44:02,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:44:02,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:44:02,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:44:02,014 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:44:02,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:44:02,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:44:02,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:44:02,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:44:02,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:44:02,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:44:02,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:44:02,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:44:02,017 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 -> 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 [2024-11-07 11:44:02,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:44:02,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:44:02,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:44:02,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:44:02,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:44:02,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2024-11-07 11:44:03,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:44:04,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:44:04,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2024-11-07 11:44:04,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c58c27d6d/ca9a10c74f8747b1bf40e8a095685c19/FLAG7c724ac92 [2024-11-07 11:44:04,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c58c27d6d/ca9a10c74f8747b1bf40e8a095685c19 [2024-11-07 11:44:04,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:44:04,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:44:04,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:44:04,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:44:04,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:44:04,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:04" (1/1) ... [2024-11-07 11:44:04,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f480ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:04, skipping insertion in model container [2024-11-07 11:44:04,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:04" (1/1) ... [2024-11-07 11:44:04,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:44:05,058 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2024-11-07 11:44:05,066 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2024-11-07 11:44:05,625 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,626 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,626 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,627 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,628 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,649 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,651 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,653 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:05,654 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,168 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,169 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:44:06,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:44:06,294 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2024-11-07 11:44:06,295 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2024-11-07 11:44:06,335 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,335 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,336 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,336 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,340 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,346 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,347 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,348 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,348 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-07 11:44:06,541 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:44:06,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-07 11:44:06,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:44:06,752 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:44:06,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06 WrapperNode [2024-11-07 11:44:06,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:44:06,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:44:06,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:44:06,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:44:06,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:06,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:06,931 INFO L138 Inliner]: procedures = 680, calls = 2663, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 876 [2024-11-07 11:44:06,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:44:06,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:44:06,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:44:06,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:44:06,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:06,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:06,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,024 INFO L175 MemorySlicer]: Split 576 memory accesses to 6 slices as follows [2, 259, 238, 9, 6, 62]. 45 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 5, 0, 16]. The 497 writes are split as follows [0, 257, 232, 0, 2, 6]. [2024-11-07 11:44:07,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:44:07,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:44:07,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:44:07,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:44:07,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (1/1) ... [2024-11-07 11:44:07,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:44:07,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:44:07,146 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 11:44:07,154 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 11:44:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-07 11:44:07,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-07 11:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2024-11-07 11:44:07,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2024-11-07 11:44:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:44:07,175 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:44:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:44:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:44:07,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-07 11:44:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-07 11:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-07 11:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-07 11:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-07 11:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:44:07,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-07 11:44:07,182 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-07 11:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-11-07 11:44:07,183 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-11-07 11:44:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:44:07,568 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:44:07,570 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:44:16,069 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-07 11:44:16,069 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:44:16,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:44:16,083 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 11:44:16,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:16 BoogieIcfgContainer [2024-11-07 11:44:16,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:44:16,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:44:16,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:44:16,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:44:16,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:44:04" (1/3) ... [2024-11-07 11:44:16,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c94fa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:16, skipping insertion in model container [2024-11-07 11:44:16,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:06" (2/3) ... [2024-11-07 11:44:16,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c94fa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:16, skipping insertion in model container [2024-11-07 11:44:16,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:16" (3/3) ... [2024-11-07 11:44:16,095 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2024-11-07 11:44:16,108 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:44:16,109 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:44:16,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:44:16,180 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;@71e3d784, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:44:16,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:44:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-07 11:44:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 11:44:16,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:44:16,199 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:44:16,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:44:16,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:44:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash -780859386, now seen corresponding path program 1 times [2024-11-07 11:44:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:44:16,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511537244] [2024-11-07 11:44:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:44:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:45:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:45:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:45:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:45:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:45:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:45:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:45:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 11:45:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:45:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 11:45:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 11:45:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 11:45:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 11:45:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 11:45:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 11:45:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 11:45:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 11:45:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:45:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:45:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:26,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 11:45:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:45:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-07 11:45:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:45:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511537244] [2024-11-07 11:45:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511537244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:45:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:45:26,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:45:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811755715] [2024-11-07 11:45:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:45:26,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:45:26,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:45:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:45:26,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:45:26,054 INFO L87 Difference]: Start difference. First operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-07 11:45:30,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:45:34,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:45:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:45:38,397 INFO L93 Difference]: Finished difference Result 284 states and 410 transitions. [2024-11-07 11:45:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:45:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2024-11-07 11:45:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:45:38,407 INFO L225 Difference]: With dead ends: 284 [2024-11-07 11:45:38,407 INFO L226 Difference]: Without dead ends: 140 [2024-11-07 11:45:38,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:45:38,415 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 229 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 159 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-07 11:45:38,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 132 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 179 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-07 11:45:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-07 11:45:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-11-07 11:45:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 83 states have (on average 1.216867469879518) internal successors, (101), 84 states have internal predecessors, (101), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-07 11:45:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 184 transitions. [2024-11-07 11:45:38,466 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 184 transitions. Word has length 113 [2024-11-07 11:45:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:45:38,467 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 184 transitions. [2024-11-07 11:45:38,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-07 11:45:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 184 transitions. [2024-11-07 11:45:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 11:45:38,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:45:38,471 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:45:38,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:45:38,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:45:38,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:45:38,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1840002180, now seen corresponding path program 1 times [2024-11-07 11:45:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:45:38,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111019410] [2024-11-07 11:45:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:45:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms