./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_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_byte_cursor_eq_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', '87391e14b88adba21a2cadbd4091fa2317508e1d0df9844d1e7f72f208000e39'] 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_cursor_eq_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 87391e14b88adba21a2cadbd4091fa2317508e1d0df9844d1e7f72f208000e39 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:51:05,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:51:05,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:51:05,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:51:05,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:51:05,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:51:05,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:51:05,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:51:05,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:51:05,465 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:51:05,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:51:05,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:51:05,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:51:05,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:51:05,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:51:05,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:51:05,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:51:05,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:51:05,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:51:05,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:51:05,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:51:05,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:51:05,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:51:05,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:51:05,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:51:05,470 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 -> 87391e14b88adba21a2cadbd4091fa2317508e1d0df9844d1e7f72f208000e39 [2024-11-07 11:51:05,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:51:05,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:51:05,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:51:05,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:51:05,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:51:05,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness_negated.i [2024-11-07 11:51:07,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:51:07,690 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:51:07,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness_negated.i [2024-11-07 11:51:07,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/663a9128f/0a9a5d5e458e4c4f978533e3bedc7b27/FLAG87dbc7af1 [2024-11-07 11:51:07,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/663a9128f/0a9a5d5e458e4c4f978533e3bedc7b27 [2024-11-07 11:51:07,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:51:07,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:51:07,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:51:07,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:51:07,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:51:07,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:51:07" (1/1) ... [2024-11-07 11:51:07,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8aebac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:07, skipping insertion in model container [2024-11-07 11:51:07,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:51:07" (1/1) ... [2024-11-07 11:51:07,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:51:08,170 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_cursor_eq_harness_negated.i[4492,4505] [2024-11-07 11:51:08,182 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_cursor_eq_harness_negated.i[4552,4565] [2024-11-07 11:51:08,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,814 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,815 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:08,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:51:09,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:51:09,527 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_cursor_eq_harness_negated.i[4492,4505] [2024-11-07 11:51:09,531 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_cursor_eq_harness_negated.i[4552,4565] [2024-11-07 11:51:09,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,592 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,592 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-07 11:51:09,812 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,812 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:51:09,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-07 11:51:09,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:51:10,045 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:51:10,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10 WrapperNode [2024-11-07 11:51:10,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:51:10,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:51:10,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:51:10,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:51:10,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,213 INFO L138 Inliner]: procedures = 680, calls = 2648, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 880 [2024-11-07 11:51:10,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:51:10,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:51:10,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:51:10,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:51:10,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,326 INFO L175 MemorySlicer]: Split 550 memory accesses to 7 slices as follows [2, 257, 238, 6, 38, 4, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 4, 0, 5]. The 494 writes are split as follows [0, 257, 232, 2, 3, 0, 0]. [2024-11-07 11:51:10,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:51:10,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:51:10,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:51:10,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:51:10,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (1/1) ... [2024-11-07 11:51:10,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:51:10,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:51:10,471 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 11:51:10,476 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 11:51:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-07 11:51:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-07 11:51:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:51:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:51:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:51:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:51:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-07 11:51:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-07 11:51:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:51:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:51:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:51:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:51:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-07 11:51:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-07 11:51:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:51:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:51:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:51:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:51:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:51:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:51:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:51:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-07 11:51:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:51:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:51:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:51:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 11:51:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 11:51:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:51:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-07 11:51:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-07 11:51:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:51:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-07 11:51:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:51:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 11:51:10,804 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:51:10,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:51:18,717 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-07 11:51:18,717 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:51:18,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:51:18,734 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:51:18,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:51:18 BoogieIcfgContainer [2024-11-07 11:51:18,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:51:18,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:51:18,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:51:18,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:51:18,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:51:07" (1/3) ... [2024-11-07 11:51:18,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3815d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:51:18, skipping insertion in model container [2024-11-07 11:51:18,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:51:10" (2/3) ... [2024-11-07 11:51:18,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3815d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:51:18, skipping insertion in model container [2024-11-07 11:51:18,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:51:18" (3/3) ... [2024-11-07 11:51:18,745 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness_negated.i [2024-11-07 11:51:18,758 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:51:18,759 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:51:18,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:51:18,830 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;@198af147, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:51:18,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:51:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-07 11:51:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 11:51:18,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:51:18,851 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-07 11:51:18,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:51:18,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:51:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash -239771141, now seen corresponding path program 1 times [2024-11-07 11:51:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:51:18,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992235024] [2024-11-07 11:51:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:51:18,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:52:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:31,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:52:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:31,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:52:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:52:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:52:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 11:52:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 11:52:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 11:52:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 11:52:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 11:52:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:52:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 11:52:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 11:52:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 11:52:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 11:52:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:52:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:52:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 11:52:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:52:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-07 11:52:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:52:32,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992235024] [2024-11-07 11:52:32,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992235024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:52:32,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:52:32,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:52:32,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959906349] [2024-11-07 11:52:32,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:52:32,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:52:32,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:52:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:52:32,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:52:32,491 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-07 11:52:36,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:52:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:52:40,048 INFO L93 Difference]: Finished difference Result 267 states and 385 transitions. [2024-11-07 11:52:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:52:40,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2024-11-07 11:52:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:52:40,058 INFO L225 Difference]: With dead ends: 267 [2024-11-07 11:52:40,059 INFO L226 Difference]: Without dead ends: 131 [2024-11-07 11:52:40,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:52:40,064 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 110 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 90 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-07 11:52:40,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 175 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-07 11:52:40,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-07 11:52:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-07 11:52:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 77 states have internal predecessors, (92), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-07 11:52:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2024-11-07 11:52:40,123 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 102 [2024-11-07 11:52:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:52:40,123 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2024-11-07 11:52:40,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-07 11:52:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2024-11-07 11:52:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 11:52:40,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:52:40,126 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-07 11:52:40,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:52:40,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:52:40,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:52:40,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1414407603, now seen corresponding path program 1 times [2024-11-07 11:52:40,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:52:40,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43280316] [2024-11-07 11:52:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:52:40,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms