./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_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_compare_lexical_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 c3c4a9e584379924ee65c46a83a6da8fed615179d4e8c5775609e5e7922fb6da --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:07:46,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:07:46,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:07:46,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:07:46,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:07:46,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:07:46,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:07:46,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:07:46,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:07:46,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:07:46,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:07:46,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:07:46,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:07:46,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:07:46,618 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:07:46,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:07:46,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:07:46,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:07:46,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:07:46,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:07:46,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:07:46,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:07:46,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:07:46,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:07:46,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:07:46,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:07:46,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:07:46,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:07:46,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:07:46,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:07:46,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:07:46,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:07:46,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:07:46,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:07:46,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c4a9e584379924ee65c46a83a6da8fed615179d4e8c5775609e5e7922fb6da [2024-11-09 03:07:46,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:07:46,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:07:46,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:07:46,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:07:46,884 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:07:46,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-09 03:07:48,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:07:48,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:07:48,568 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-09 03:07:48,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aacd1935/5836a8eab6654a8db7d4e9cce8126beb/FLAGe71b9e264 [2024-11-09 03:07:48,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aacd1935/5836a8eab6654a8db7d4e9cce8126beb [2024-11-09 03:07:48,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:07:48,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:07:48,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:07:48,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:07:48,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:07:48,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:48" (1/1) ... [2024-11-09 03:07:48,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7987400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:48, skipping insertion in model container [2024-11-09 03:07:48,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:48" (1/1) ... [2024-11-09 03:07:48,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:07:48,930 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_compare_lexical_harness_negated.i[4505,4518] [2024-11-09 03:07:48,938 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_compare_lexical_harness_negated.i[4565,4578] [2024-11-09 03:07:49,523 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,524 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,525 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,525 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,526 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,543 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:49,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,030 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,030 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:07:50,196 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:07:50,213 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_compare_lexical_harness_negated.i[4505,4518] [2024-11-09 03:07:50,215 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_compare_lexical_harness_negated.i[4565,4578] [2024-11-09 03:07:50,240 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,241 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,241 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,241 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,242 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,245 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,247 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-09 03:07:50,329 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,329 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:07:50,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-09 03:07:50,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:07:50,542 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:07:50,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50 WrapperNode [2024-11-09 03:07:50,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:07:50,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:07:50,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:07:50,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:07:50,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,696 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2024-11-09 03:07:50,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:07:50,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:07:50,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:07:50,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:07:50,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,791 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 46, 238, 6, 4, 5]. 46 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 4, 6, 0, 0, 5]. The 494 writes are split as follows [0, 257, 3, 232, 2, 0, 0]. [2024-11-09 03:07:50,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:07:50,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:07:50,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:07:50,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:07:50,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (1/1) ... [2024-11-09 03:07:50,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:07:50,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:07:50,902 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 03:07:50,907 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 03:07:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 03:07:50,943 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 03:07:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2024-11-09 03:07:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2024-11-09 03:07:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:07:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:07:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:07:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:07:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:07:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:07:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:07:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:07:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:07:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-09 03:07:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:07:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:07:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 03:07:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 03:07:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:07:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:07:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:07:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:07:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 03:07:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:07:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 03:07:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:07:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:07:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:07:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:07:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:07:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:07:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:07:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:07:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:07:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:07:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:07:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:07:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 03:07:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-09 03:07:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:07:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:07:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 03:07:51,232 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:07:51,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:07:58,831 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-09 03:07:58,832 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:07:58,845 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:07:58,846 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 03:07:58,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:58 BoogieIcfgContainer [2024-11-09 03:07:58,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:07:58,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:07:58,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:07:58,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:07:58,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:07:48" (1/3) ... [2024-11-09 03:07:58,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eef118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:58, skipping insertion in model container [2024-11-09 03:07:58,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:50" (2/3) ... [2024-11-09 03:07:58,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eef118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:58, skipping insertion in model container [2024-11-09 03:07:58,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:58" (3/3) ... [2024-11-09 03:07:58,855 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-09 03:07:58,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:07:58,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:07:58,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:07:58,924 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;@23b4c63b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:07:58,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:07:58,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 03:07:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 03:07:58,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:07:58,938 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2024-11-09 03:07:58,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:07:58,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:07:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1411432407, now seen corresponding path program 1 times [2024-11-09 03:07:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:07:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615562193] [2024-11-09 03:07:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:07:58,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:09:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:09:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:09:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:09:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:09:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 03:09:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 03:09:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 03:09:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 03:09:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 03:09:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 03:09:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 03:09:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 03:09:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 03:09:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 03:09:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 03:09:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 03:09:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 03:09:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 03:09:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 03:09:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:09:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 03:09:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:09:18,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615562193] [2024-11-09 03:09:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615562193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:09:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:09:18,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 03:09:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985807947] [2024-11-09 03:09:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:09:18,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 03:09:18,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:09:18,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 03:09:18,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 03:09:18,790 INFO L87 Difference]: Start difference. First operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 03:09:22,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 03:09:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:09:26,218 INFO L93 Difference]: Finished difference Result 297 states and 435 transitions. [2024-11-09 03:09:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 03:09:26,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2024-11-09 03:09:26,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:09:26,227 INFO L225 Difference]: With dead ends: 297 [2024-11-09 03:09:26,227 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 03:09:26,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 03:09:26,236 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 132 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-09 03:09:26,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 163 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-09 03:09:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 03:09:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-09 03:09:26,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 03:09:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 193 transitions. [2024-11-09 03:09:26,279 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 193 transitions. Word has length 120 [2024-11-09 03:09:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:09:26,279 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 193 transitions. [2024-11-09 03:09:26,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 03:09:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 193 transitions. [2024-11-09 03:09:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 03:09:26,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:09:26,283 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2024-11-09 03:09:26,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:09:26,283 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:09:26,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:09:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1331612261, now seen corresponding path program 1 times [2024-11-09 03:09:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:09:26,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953527860] [2024-11-09 03:09:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:09:26,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms