./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 3289d67d 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-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:51:12,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:51:12,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:51:12,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:51:12,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:51:12,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:51:12,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:51:12,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:51:12,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:51:12,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:51:12,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:51:12,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:51:12,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:51:12,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:51:12,751 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:51:12,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:51:12,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:51:12,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:51:12,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:51:12,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:51:12,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:51:12,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:51:12,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:51:12,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:51:12,754 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:51:12,755 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:51:12,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:51:12,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:51:12,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:51:12,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:12,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:51:12,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:51:12,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:51:12,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:51:12,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:51:12,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:51:12,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:51:12,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:51:12,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:51:12,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c4a9e584379924ee65c46a83a6da8fed615179d4e8c5775609e5e7922fb6da [2024-11-16 19:51:12,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:51:12,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:51:12,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:51:13,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:51:13,001 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:51:13,001 INFO L431 ainManager$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 [2024-11-16 19:51:14,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:51:14,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:51:14,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-16 19:51:14,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa68acdd5/0d593cb4453940429ea9199e36b05cff/FLAG538318802 [2024-11-16 19:51:14,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa68acdd5/0d593cb4453940429ea9199e36b05cff [2024-11-16 19:51:14,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:51:14,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:51:14,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:14,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:51:14,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:51:14,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:14" (1/1) ... [2024-11-16 19:51:14,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377f9fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:14, skipping insertion in model container [2024-11-16 19:51:14,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:14" (1/1) ... [2024-11-16 19:51:14,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:51:15,137 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] [2024-11-16 19:51:15,143 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] [2024-11-16 19:51:15,615 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,616 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,616 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,617 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,617 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,628 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,628 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,630 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:15,630 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,060 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,061 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:16,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:51:16,200 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] [2024-11-16 19:51:16,203 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] [2024-11-16 19:51:16,232 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,233 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,233 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,234 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,235 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,240 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,245 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,246 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-16 19:51:16,352 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,352 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:16,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-16 19:51:16,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:16,599 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:51:16,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16 WrapperNode [2024-11-16 19:51:16,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:16,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:16,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:51:16,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:51:16,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,743 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2024-11-16 19:51:16,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:16,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:51:16,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:51:16,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:51:16,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,824 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 238, 6, 46, 4, 5]. 46 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 4, 0, 5]. The 494 writes are split as follows [0, 257, 232, 2, 3, 0, 0]. [2024-11-16 19:51:16,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:51:16,886 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:51:16,886 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:51:16,887 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:51:16,889 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (1/1) ... [2024-11-16 19:51:16,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:16,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:51:16,916 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) [2024-11-16 19:51:16,917 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 [2024-11-16 19:51:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2024-11-16 19:51:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2024-11-16 19:51:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:51:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:51:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 19:51:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:51:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:51:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-16 19:51:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:51:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:51:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:51:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:51:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:51:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:51:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:51:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:51:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 19:51:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:51:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:51:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:51:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:51:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:51:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:51:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:51:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:51:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:51:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:51:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:51:17,211 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:51:17,212 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:51:17,243 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:51:17,278 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:51:17,296 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:51:17,303 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6657: havoc #t~mem509; [2024-11-16 19:51:17,312 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:51:17,332 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7363: havoc #t~mem694;havoc #t~mem695;havoc #t~mem696.base, #t~mem696.offset;havoc #t~short697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~short701;havoc #t~short702;havoc #t~short703; [2024-11-16 19:51:17,368 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8112: havoc #t~mem1032#1; [2024-11-16 19:51:17,369 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7301: havoc memcmp_safe_#t~nondet655#1; [2024-11-16 19:51:24,134 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-16 19:51:24,134 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:51:24,144 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:51:24,144 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:51:24,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:24 BoogieIcfgContainer [2024-11-16 19:51:24,145 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:51:24,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:51:24,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:51:24,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:51:24,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:51:14" (1/3) ... [2024-11-16 19:51:24,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246a8b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:24, skipping insertion in model container [2024-11-16 19:51:24,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:16" (2/3) ... [2024-11-16 19:51:24,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246a8b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:24, skipping insertion in model container [2024-11-16 19:51:24,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:24" (3/3) ... [2024-11-16 19:51:24,152 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-16 19:51:24,163 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:51:24,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:51:24,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:51:24,218 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;@132b835a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:51:24,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:51:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 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) [2024-11-16 19:51:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 19:51:24,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:51:24,233 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] [2024-11-16 19:51:24,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:51:24,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:51:24,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1485607862, now seen corresponding path program 1 times [2024-11-16 19:51:24,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:51:24,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797991014] [2024-11-16 19:51:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:51:24,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:52:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:40,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:52:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:52:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:52:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:52:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 19:52:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 19:52:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:52:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 19:52:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 19:52:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 19:52:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 19:52:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 19:52:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 19:52:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 19:52:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 19:52:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 19:52:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 19:52:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 19:52:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 19:52:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-16 19:52:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:52:41,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797991014] [2024-11-16 19:52:41,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797991014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:52:41,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:52:41,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:52:41,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856753490] [2024-11-16 19:52:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:52:41,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:52:41,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:52:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:52:41,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:52:41,332 INFO L87 Difference]: Start difference. First operand has 151 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 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) [2024-11-16 19:52:45,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:52:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:52:48,835 INFO L93 Difference]: Finished difference Result 300 states and 438 transitions. [2024-11-16 19:52:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:52:48,837 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 [2024-11-16 19:52:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:52:48,844 INFO L225 Difference]: With dead ends: 300 [2024-11-16 19:52:48,844 INFO L226 Difference]: Without dead ends: 147 [2024-11-16 19:52:48,847 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 [2024-11-16 19:52:48,849 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 134 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-16 19:52:48,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 163 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-16 19:52:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-16 19:52:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-11-16 19:52:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 86 states have (on average 1.197674418604651) internal successors, (103), 87 states have internal predecessors, (103), 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) [2024-11-16 19:52:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2024-11-16 19:52:48,903 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 120 [2024-11-16 19:52:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:52:48,904 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2024-11-16 19:52:48,904 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) [2024-11-16 19:52:48,905 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2024-11-16 19:52:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 19:52:48,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:52:48,909 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] [2024-11-16 19:52:48,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:52:48,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:52:48,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:52:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash -621965713, now seen corresponding path program 1 times [2024-11-16 19:52:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:52:48,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033780244] [2024-11-16 19:52:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:52:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms