./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_byte_buf_init_copy_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_byte_buf_init_copy_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 abdf5eedefad76d9bd13f7d94286eab9c8ba6966165711daf80a608af314bb9b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:58:34,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:58:34,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 09:58:34,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:58:34,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:58:34,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:58:34,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:58:34,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:58:34,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:58:34,807 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:58:34,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:58:34,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:58:34,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:58:34,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:58:34,811 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:58:34,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:58:34,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:58:34,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:58:34,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:58:34,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:58:34,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:58:34,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:58:34,819 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:58:34,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:58:34,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:58:34,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:58:34,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:58:34,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:58:34,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:58:34,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:58:34,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:58:34,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:58:34,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:58:34,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:58:34,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:58:34,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:58:34,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:58:34,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:58:34,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:58:34,824 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abdf5eedefad76d9bd13f7d94286eab9c8ba6966165711daf80a608af314bb9b [2024-11-20 09:58:35,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:58:35,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:58:35,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:58:35,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:58:35,100 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:58:35,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2024-11-20 09:58:36,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:58:37,182 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:58:37,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2024-11-20 09:58:37,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33a5773f/7e100ce457344d1c9adce65eb17fcd0a/FLAG6d7400177 [2024-11-20 09:58:37,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33a5773f/7e100ce457344d1c9adce65eb17fcd0a [2024-11-20 09:58:37,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:58:37,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:58:37,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:58:37,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:58:37,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:58:37,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:58:37" (1/1) ... [2024-11-20 09:58:37,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e88efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:37, skipping insertion in model container [2024-11-20 09:58:37,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:58:37" (1/1) ... [2024-11-20 09:58:37,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:58:38,172 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_buf_init_copy_harness.i[4496,4509] [2024-11-20 09:58:38,183 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_buf_init_copy_harness.i[4556,4569] [2024-11-20 09:58:39,054 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,054 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,055 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,055 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,058 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,076 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,077 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,079 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,079 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,675 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,679 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:58:39,841 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:58:39,866 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_buf_init_copy_harness.i[4496,4509] [2024-11-20 09:58:39,867 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_buf_init_copy_harness.i[4556,4569] [2024-11-20 09:58:39,972 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,975 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,976 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,977 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,984 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,984 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,985 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:39,986 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:40,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-20 09:58:40,103 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:40,105 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:58:40,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-20 09:58:40,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:58:40,414 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:58:40,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40 WrapperNode [2024-11-20 09:58:40,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:58:40,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:58:40,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:58:40,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:58:40,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,624 INFO L138 Inliner]: procedures = 680, calls = 2622, calls flagged for inlining = 63, calls inlined = 11, statements flattened = 948 [2024-11-20 09:58:40,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:58:40,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:58:40,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:58:40,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:58:40,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,735 INFO L175 MemorySlicer]: Split 566 memory accesses to 5 slices as follows [257, 2, 238, 63, 6]. 45 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [0, 2, 6, 9, 0]. The 503 writes are split as follows [257, 0, 232, 12, 2]. [2024-11-20 09:58:40,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:58:40,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:58:40,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:58:40,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:58:40,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (1/1) ... [2024-11-20 09:58:40,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:58:40,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:58:40,900 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 09:58:40,903 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 09:58:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-20 09:58:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-20 09:58:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:58:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 09:58:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-20 09:58:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:58:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-20 09:58:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 09:58:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:58:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:58:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:58:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 09:58:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-20 09:58:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-20 09:58:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:58:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:58:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 09:58:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 09:58:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-20 09:58:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-20 09:58:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-20 09:58:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 09:58:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 09:58:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-20 09:58:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-20 09:58:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-20 09:58:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 09:58:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 09:58:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-20 09:58:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-20 09:58:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:58:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-20 09:58:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-20 09:58:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:58:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:58:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:58:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 09:58:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:58:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:58:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:58:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:58:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 09:58:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 09:58:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 09:58:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 09:58:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 09:58:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:58:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 09:58:41,283 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:58:41,286 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:58:49,633 INFO L? ?]: Removed 155 outVars from TransFormulas that were not future-live. [2024-11-20 09:58:49,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:58:49,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:58:49,654 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-20 09:58:49,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:58:49 BoogieIcfgContainer [2024-11-20 09:58:49,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:58:49,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:58:49,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:58:49,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:58:49,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:58:37" (1/3) ... [2024-11-20 09:58:49,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137e3b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:58:49, skipping insertion in model container [2024-11-20 09:58:49,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:58:40" (2/3) ... [2024-11-20 09:58:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137e3b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:58:49, skipping insertion in model container [2024-11-20 09:58:49,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:58:49" (3/3) ... [2024-11-20 09:58:49,662 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_copy_harness.i [2024-11-20 09:58:49,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:58:49,680 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:58:49,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:58:49,760 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;@41e44de0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:58:49,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:58:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 122 states have (on average 1.221311475409836) internal successors, (149), 121 states have internal predecessors, (149), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-20 09:58:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 09:58:49,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:58:49,780 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:58:49,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:58:49,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:58:49,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1965116141, now seen corresponding path program 1 times [2024-11-20 09:58:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:58:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82559794] [2024-11-20 09:58:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:58:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:00:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-20 10:00:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 10:00:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 10:00:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:00:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 10:00:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 10:00:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 10:00:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:00:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 10:00:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-20 10:00:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 10:00:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:04,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 10:00:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:00:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-20 10:00:05,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:00:05,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82559794] [2024-11-20 10:00:05,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82559794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:00:05,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:00:05,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 10:00:05,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120667889] [2024-11-20 10:00:05,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:00:05,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 10:00:05,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:00:05,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 10:00:05,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 10:00:05,041 INFO L87 Difference]: Start difference. First operand has 185 states, 122 states have (on average 1.221311475409836) internal successors, (149), 121 states have internal predecessors, (149), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 10:00:09,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:00:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 10:00:11,387 INFO L93 Difference]: Finished difference Result 376 states and 532 transitions. [2024-11-20 10:00:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 10:00:11,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2024-11-20 10:00:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 10:00:11,400 INFO L225 Difference]: With dead ends: 376 [2024-11-20 10:00:11,400 INFO L226 Difference]: Without dead ends: 189 [2024-11-20 10:00:11,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 10:00:11,408 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 82 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-20 10:00:11,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 225 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-20 10:00:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-20 10:00:11,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 179. [2024-11-20 10:00:11,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 114 states have (on average 1.1666666666666667) internal successors, (133), 115 states have internal predecessors, (133), 49 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 10:00:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions. [2024-11-20 10:00:11,464 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 82 [2024-11-20 10:00:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 10:00:11,465 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions. [2024-11-20 10:00:11,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 10:00:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions. [2024-11-20 10:00:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-20 10:00:11,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:00:11,474 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 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] [2024-11-20 10:00:11,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 10:00:11,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:00:11,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:00:11,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1792620296, now seen corresponding path program 1 times [2024-11-20 10:00:11,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:00:11,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420539506] [2024-11-20 10:00:11,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:00:11,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms