./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_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_from_string_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 50b1ca614ebad9eb3dfd79de33e45d91140d59dc37b022f2a8ddcabf14cf16e8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:10:31,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:10:31,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:10:31,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:10:31,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:10:31,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:10:31,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:10:31,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:10:31,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:10:31,189 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:10:31,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:10:31,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:10:31,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:10:31,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:10:31,193 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:10:31,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:10:31,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:10:31,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:10:31,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:10:31,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:10:31,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:10:31,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:10:31,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:10:31,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:10:31,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:10:31,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:10:31,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:10:31,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:10:31,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:10:31,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:10:31,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:10:31,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:10:31,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:10:31,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:10:31,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:10:31,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:10:31,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:10:31,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:10:31,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:10:31,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b1ca614ebad9eb3dfd79de33e45d91140d59dc37b022f2a8ddcabf14cf16e8 [2024-11-09 03:10:31,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:10:31,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:10:31,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:10:31,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:10:31,513 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:10:31,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness_negated.i [2024-11-09 03:10:33,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:10:33,494 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:10:33,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness_negated.i [2024-11-09 03:10:33,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6707e8a0/fd6e0b4aabfc42788824aeadbb46fa32/FLAG54b5ef899 [2024-11-09 03:10:33,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6707e8a0/fd6e0b4aabfc42788824aeadbb46fa32 [2024-11-09 03:10:33,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:10:33,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:10:33,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:10:33,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:10:33,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:10:33,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:33" (1/1) ... [2024-11-09 03:10:33,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b149d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:33, skipping insertion in model container [2024-11-09 03:10:33,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:33" (1/1) ... [2024-11-09 03:10:33,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:10:34,073 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_from_string_harness_negated.i[4501,4514] [2024-11-09 03:10:34,082 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_from_string_harness_negated.i[4561,4574] [2024-11-09 03:10:34,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,828 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,829 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,831 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,864 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,865 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,867 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:34,869 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,443 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,444 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:10:35,617 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:10:35,640 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_from_string_harness_negated.i[4501,4514] [2024-11-09 03:10:35,640 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_from_string_harness_negated.i[4561,4574] [2024-11-09 03:10:35,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,696 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,705 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,706 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,706 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,707 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2024-11-09 03:10:35,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,846 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:10:35,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2024-11-09 03:10:35,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:10:36,201 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:10:36,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36 WrapperNode [2024-11-09 03:10:36,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:10:36,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:10:36,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:10:36,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:10:36,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,421 INFO L138 Inliner]: procedures = 682, calls = 2791, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 848 [2024-11-09 03:10:36,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:10:36,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:10:36,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:10:36,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:10:36,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,546 INFO L175 MemorySlicer]: Split 543 memory accesses to 6 slices as follows [2, 249, 257, 14, 16, 5]. 47 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 6, 0, 2, 16, 5]. The 494 writes are split as follows [0, 235, 257, 2, 0, 0]. [2024-11-09 03:10:36,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:10:36,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:10:36,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:10:36,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:10:36,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (1/1) ... [2024-11-09 03:10:36,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:10:36,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:10:36,678 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 03:10:36,680 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 03:10:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-09 03:10:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-09 03:10:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 03:10:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 03:10:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:10:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:10:36,729 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:10:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:10:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:10:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:10:36,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:10:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:10:36,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:10:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:10:36,734 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:10:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-09 03:10:36,734 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-09 03:10:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:10:36,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:10:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:10:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:10:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:10:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:10:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:10:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:10:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:10:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:10:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:10:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:10:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:10:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:10:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:10:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:10:36,739 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:10:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:10:36,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:10:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:10:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:10:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:10:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:10:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:10:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:10:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:10:37,093 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:10:37,096 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:10:45,642 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-09 03:10:45,643 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:10:45,656 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:10:45,658 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 03:10:45,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:45 BoogieIcfgContainer [2024-11-09 03:10:45,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:10:45,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:10:45,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:10:45,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:10:45,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:10:33" (1/3) ... [2024-11-09 03:10:45,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e81fe74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:45, skipping insertion in model container [2024-11-09 03:10:45,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:36" (2/3) ... [2024-11-09 03:10:45,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e81fe74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:45, skipping insertion in model container [2024-11-09 03:10:45,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:45" (3/3) ... [2024-11-09 03:10:45,670 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness_negated.i [2024-11-09 03:10:45,687 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:10:45,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:10:45,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:10:45,759 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;@1454215, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:10:45,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:10:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 03:10:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 03:10:45,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:10:45,775 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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] [2024-11-09 03:10:45,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:10:45,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:10:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash -886272952, now seen corresponding path program 1 times [2024-11-09 03:10:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:10:45,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259513297] [2024-11-09 03:10:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:10:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:11:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:11:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:11:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:11:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:11:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:11:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 03:11:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 03:11:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 03:11:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 03:11:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:11:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:11:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 03:11:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 03:11:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:11:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 03:11:57,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:11:57,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259513297] [2024-11-09 03:11:57,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259513297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:11:57,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:11:57,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 03:11:57,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577785675] [2024-11-09 03:11:57,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:11:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 03:11:57,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:11:57,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 03:11:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 03:11:57,644 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 03:12:01,845 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 [] [2024-11-09 03:12:06,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 03:12:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:12:08,332 INFO L93 Difference]: Finished difference Result 201 states and 264 transitions. [2024-11-09 03:12:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 03:12:08,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-11-09 03:12:08,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:12:08,343 INFO L225 Difference]: With dead ends: 201 [2024-11-09 03:12:08,343 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 03:12:08,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 03:12:08,350 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-09 03:12:08,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 76 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-09 03:12:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 03:12:08,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-09 03:12:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 63 states have internal predecessors, (71), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 03:12:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2024-11-09 03:12:08,401 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 85 [2024-11-09 03:12:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:12:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2024-11-09 03:12:08,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 03:12:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2024-11-09 03:12:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 03:12:08,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:12:08,407 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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] [2024-11-09 03:12:08,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:12:08,408 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:12:08,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:12:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1097972986, now seen corresponding path program 1 times [2024-11-09 03:12:08,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:12:08,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927209037] [2024-11-09 03:12:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:12:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms