./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.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 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 10:18:42,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 10:18:42,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 10:18:42,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 10:18:42,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 10:18:42,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 10:18:42,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 10:18:42,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 10:18:42,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 10:18:42,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 10:18:42,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 10:18:42,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 10:18:42,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 10:18:42,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 10:18:42,749 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 10:18:42,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 10:18:42,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 10:18:42,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 10:18:42,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 10:18:42,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 10:18:42,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 10:18:42,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 10:18:42,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 10:18:42,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 10:18:42,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 10:18:42,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 10:18:42,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 10:18:42,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 10:18:42,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 10:18:42,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:18:42,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 10:18:42,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 10:18:42,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 10:18:42,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 10:18:42,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 10:18:42,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 10:18:42,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 10:18:42,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 10:18:42,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 10:18:42,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 [2024-11-20 10:18:42,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 10:18:42,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 10:18:42,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 10:18:42,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 10:18:42,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 10:18:42,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2024-11-20 10:18:44,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 10:18:44,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 10:18:44,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2024-11-20 10:18:44,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e91c8a0af/879aef571298474ca4f8e9e329cc885c/FLAGe622e26f0 [2024-11-20 10:18:44,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e91c8a0af/879aef571298474ca4f8e9e329cc885c [2024-11-20 10:18:44,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 10:18:44,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 10:18:44,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 10:18:44,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 10:18:44,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 10:18:44,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:18:44" (1/1) ... [2024-11-20 10:18:44,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efed2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:44, skipping insertion in model container [2024-11-20 10:18:44,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:18:44" (1/1) ... [2024-11-20 10:18:44,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 10:18:45,127 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_string_new_from_string_harness.i[4500,4513] [2024-11-20 10:18:45,134 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_string_new_from_string_harness.i[4560,4573] [2024-11-20 10:18:45,635 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,637 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,637 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,638 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,639 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,655 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,657 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:45,657 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,032 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,033 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:18:46,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 10:18:46,148 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_string_new_from_string_harness.i[4500,4513] [2024-11-20 10:18:46,149 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_string_new_from_string_harness.i[4560,4573] [2024-11-20 10:18:46,189 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,193 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,194 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-20 10:18:46,321 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,321 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:18:46,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-20 10:18:46,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:18:46,641 INFO L204 MainTranslator]: Completed translation [2024-11-20 10:18:46,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46 WrapperNode [2024-11-20 10:18:46,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 10:18:46,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 10:18:46,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 10:18:46,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 10:18:46,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,781 INFO L138 Inliner]: procedures = 679, calls = 2733, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 831 [2024-11-20 10:18:46,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 10:18:46,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 10:18:46,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 10:18:46,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 10:18:46,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,872 INFO L175 MemorySlicer]: Split 525 memory accesses to 6 slices as follows [2, 2, 257, 238, 5, 21]. 49 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 0, 6, 5, 0]. The 497 writes are split as follows [0, 1, 257, 232, 0, 7]. [2024-11-20 10:18:46,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 10:18:46,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 10:18:46,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 10:18:46,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 10:18:46,962 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (1/1) ... [2024-11-20 10:18:46,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:18:46,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 10:18:46,996 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) [2024-11-20 10:18:47,002 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 [2024-11-20 10:18:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-20 10:18:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-20 10:18:47,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 10:18:47,042 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 10:18:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 10:18:47,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-20 10:18:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-20 10:18:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-20 10:18:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-20 10:18:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-20 10:18:47,044 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 10:18:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 10:18:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 10:18:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 10:18:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 10:18:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 10:18:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 10:18:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 10:18:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 10:18:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 10:18:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 10:18:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-20 10:18:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-20 10:18:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 10:18:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 10:18:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 10:18:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 10:18:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 10:18:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-20 10:18:47,051 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-20 10:18:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 10:18:47,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 10:18:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-20 10:18:47,051 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-20 10:18:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 10:18:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-20 10:18:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-20 10:18:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 10:18:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2024-11-20 10:18:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2024-11-20 10:18:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 10:18:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-20 10:18:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 10:18:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 10:18:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-20 10:18:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-20 10:18:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_string [2024-11-20 10:18:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_string [2024-11-20 10:18:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 10:18:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 10:18:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 10:18:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 10:18:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 10:18:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 10:18:47,372 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 10:18:47,375 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 10:18:47,831 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2024-11-20 10:18:54,703 INFO L? ?]: Removed 178 outVars from TransFormulas that were not future-live. [2024-11-20 10:18:54,705 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 10:18:54,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 10:18:54,722 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 10:18:54,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:18:54 BoogieIcfgContainer [2024-11-20 10:18:54,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 10:18:54,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 10:18:54,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 10:18:54,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 10:18:54,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:18:44" (1/3) ... [2024-11-20 10:18:54,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d21dafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:18:54, skipping insertion in model container [2024-11-20 10:18:54,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:18:46" (2/3) ... [2024-11-20 10:18:54,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d21dafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:18:54, skipping insertion in model container [2024-11-20 10:18:54,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:18:54" (3/3) ... [2024-11-20 10:18:54,732 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_string_harness.i [2024-11-20 10:18:54,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 10:18:54,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 10:18:54,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 10:18:54,805 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;@155f5ad6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 10:18:54,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 10:18:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-20 10:18:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-20 10:18:54,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:18:54,821 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 10:18:54,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:18:54,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:18:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1689756811, now seen corresponding path program 1 times [2024-11-20 10:18:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:18:54,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474931711] [2024-11-20 10:18:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:18:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:20:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:12,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:20:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:12,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 10:20:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:12,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 10:20:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:12,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:20:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:12,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 10:20:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 10:20:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:20:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 10:20:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:20:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 10:20:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 10:20:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:20:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:20:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 10:20:13,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:20:13,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474931711] [2024-11-20 10:20:13,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474931711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:20:13,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:20:13,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 10:20:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712757374] [2024-11-20 10:20:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:20:13,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 10:20:13,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:20:13,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 10:20:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 10:20:13,357 INFO L87 Difference]: Start difference. First operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 10:20:17,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:20:21,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:20:26,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []