./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 7c476ea7bc8a786d33668b6cb8f301b8252e7c8b80d41c223cf0f784d72657f4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:07:11,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:07:11,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:07:11,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:07:11,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:07:11,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:07:11,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:07:11,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:07:11,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:07:11,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:07:11,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:07:11,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:07:11,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:07:11,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:07:11,186 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:07:11,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:07:11,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:07:11,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:07:11,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:07:11,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:07:11,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:07:11,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:07:11,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:07:11,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:07:11,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:07:11,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:07:11,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:07:11,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:07:11,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:07:11,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:07:11,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:07:11,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:07:11,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:07:11,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:07:11,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:07:11,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:07:11,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:07:11,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:07:11,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:07:11,199 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c476ea7bc8a786d33668b6cb8f301b8252e7c8b80d41c223cf0f784d72657f4 [2024-11-09 03:07:11,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:07:11,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:07:11,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:07:11,536 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:07:11,536 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:07:11,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i [2024-11-09 03:07:13,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:07:13,474 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:07:13,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i [2024-11-09 03:07:13,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547b37f41/89bdda7591354ef3932d39dcd54abfbb/FLAGa843a64ec [2024-11-09 03:07:13,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547b37f41/89bdda7591354ef3932d39dcd54abfbb [2024-11-09 03:07:13,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:07:13,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:07:13,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:07:13,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:07:13,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:07:13,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:13" (1/1) ... [2024-11-09 03:07:13,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0bc7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:13, skipping insertion in model container [2024-11-09 03:07:13,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:13" (1/1) ... [2024-11-09 03:07:13,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:07:13,933 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i[4497,4510] [2024-11-09 03:07:13,943 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i[4557,4570] [2024-11-09 03:07:14,744 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,745 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,745 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,746 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,763 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,764 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,769 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:14,770 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:07:15,584 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:07:15,603 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i[4497,4510] [2024-11-09 03:07:15,603 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness_negated.i[4557,4570] [2024-11-09 03:07:15,642 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,644 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,649 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,650 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,650 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,651 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-09 03:07:15,762 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,763 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:15,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-09 03:07:15,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:07:16,006 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:07:16,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16 WrapperNode [2024-11-09 03:07:16,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:07:16,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:07:16,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:07:16,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:07:16,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,197 INFO L138 Inliner]: procedures = 679, calls = 2636, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 884 [2024-11-09 03:07:16,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:07:16,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:07:16,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:07:16,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:07:16,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,321 INFO L175 MemorySlicer]: Split 555 memory accesses to 7 slices as follows [2, 257, 8, 37, 240, 6, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 2, 4, 6, 0, 5]. The 498 writes are split as follows [0, 257, 0, 7, 232, 2, 0]. [2024-11-09 03:07:16,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:07:16,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:07:16,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:07:16,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:07:16,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (1/1) ... [2024-11-09 03:07:16,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:07:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:07:16,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 03:07:16,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 03:07:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 03:07:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 03:07:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:07:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:07:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:07:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:07:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:07:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:07:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 03:07:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:07:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:07:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:07:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:07:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:07:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:07:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:07:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 03:07:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:07:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:07:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:07:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:07:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:07:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:07:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:07:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:07:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 03:07:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 03:07:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:07:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:07:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:07:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:07:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:07:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:07:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 03:07:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:07:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:07:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:07:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:07:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:07:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:07:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 03:07:16,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:07:16,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:07:25,101 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-09 03:07:25,102 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:07:25,114 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:07:25,115 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 03:07:25,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:25 BoogieIcfgContainer [2024-11-09 03:07:25,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:07:25,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:07:25,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:07:25,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:07:25,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:07:13" (1/3) ... [2024-11-09 03:07:25,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0beef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:25, skipping insertion in model container [2024-11-09 03:07:25,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:16" (2/3) ... [2024-11-09 03:07:25,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0beef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:25, skipping insertion in model container [2024-11-09 03:07:25,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:25" (3/3) ... [2024-11-09 03:07:25,122 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness_negated.i [2024-11-09 03:07:25,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:07:25,137 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:07:25,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:07:25,205 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;@1512c7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:07:25,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:07:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 03:07:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 03:07:25,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:07:25,224 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 03:07:25,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:07:25,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:07:25,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1544401272, now seen corresponding path program 1 times [2024-11-09 03:07:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:07:25,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387006371] [2024-11-09 03:07:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:07:25,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:08:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:08:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:08:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 03:08:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 03:08:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 03:08:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 03:08:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:08:41,119 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 03:08:41,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:08:41,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387006371] [2024-11-09 03:08:41,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387006371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:08:41,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:08:41,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 03:08:41,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407492829] [2024-11-09 03:08:41,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:08:41,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 03:08:41,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:08:41,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 03:08:41,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 03:08:41,157 INFO L87 Difference]: Start difference. First operand has 90 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 03:08:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:08:41,183 INFO L93 Difference]: Finished difference Result 170 states and 243 transitions. [2024-11-09 03:08:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 03:08:41,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2024-11-09 03:08:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:08:41,195 INFO L225 Difference]: With dead ends: 170 [2024-11-09 03:08:41,195 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 03:08:41,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 03:08:41,206 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 03:08:41,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 03:08:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 03:08:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-09 03:08:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 54 states have internal predecessors, (64), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 03:08:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2024-11-09 03:08:41,248 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 47 [2024-11-09 03:08:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:08:41,251 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2024-11-09 03:08:41,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 03:08:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2024-11-09 03:08:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 03:08:41,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:08:41,256 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 03:08:41,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:08:41,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:08:41,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:08:41,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1752129924, now seen corresponding path program 1 times [2024-11-09 03:08:41,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:08:41,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889748909] [2024-11-09 03:08:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:08:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms