./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_append_dynamic_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_append_dynamic_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 2645e4add29ef9adc891aaf11068209afc07e559232dc682f343d102e9e79145 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:55:05,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:55:05,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 09:55:05,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:55:05,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:55:05,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:55:05,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:55:05,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:55:05,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:55:05,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:55:05,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:55:05,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:55:05,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:55:05,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:55:05,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:55:05,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:55:05,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:55:05,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:55:05,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:55:05,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:55:05,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:55:05,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:55:05,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:55:05,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:55:05,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:55:05,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:55:05,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:55:05,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:55:05,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:55:05,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:55:05,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:55:05,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:55:05,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:55:05,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:55:05,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:55:05,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:55:05,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:55:05,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:55:05,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:55:05,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2645e4add29ef9adc891aaf11068209afc07e559232dc682f343d102e9e79145 [2024-11-20 09:55:05,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:55:05,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:55:05,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:55:05,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:55:05,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:55:05,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2024-11-20 09:55:07,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:55:07,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:55:07,622 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2024-11-20 09:55:07,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb653424/7774839afc5647338a363cfc1890a4d5/FLAG309a5c6f5 [2024-11-20 09:55:07,736 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb653424/7774839afc5647338a363cfc1890a4d5 [2024-11-20 09:55:07,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:55:07,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:55:07,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:55:07,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:55:07,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:55:07,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:55:07" (1/1) ... [2024-11-20 09:55:07,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30813226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:07, skipping insertion in model container [2024-11-20 09:55:07,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:55:07" (1/1) ... [2024-11-20 09:55:07,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:55:08,243 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_append_dynamic_harness.i[4501,4514] [2024-11-20 09:55:08,254 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_append_dynamic_harness.i[4561,4574] [2024-11-20 09:55:09,026 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,027 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,027 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,029 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,048 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,051 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,053 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,054 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,579 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,658 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,659 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:55:09,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:55:09,836 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_append_dynamic_harness.i[4501,4514] [2024-11-20 09:55:09,837 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_append_dynamic_harness.i[4561,4574] [2024-11-20 09:55:09,896 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,897 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,899 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,900 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,900 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,910 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,915 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,916 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:09,916 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:10,011 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:10,012 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:10,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2024-11-20 09:55:10,053 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:10,053 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:55:10,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2024-11-20 09:55:10,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:55:10,349 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:55:10,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10 WrapperNode [2024-11-20 09:55:10,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:55:10,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:55:10,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:55:10,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:55:10,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,556 INFO L138 Inliner]: procedures = 680, calls = 2637, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1080 [2024-11-20 09:55:10,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:55:10,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:55:10,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:55:10,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:55:10,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,702 INFO L175 MemorySlicer]: Split 595 memory accesses to 9 slices as follows [2, 8, 257, 238, 9, 25, 5, 4, 47]. 43 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 4, 0, 6, 5, 2, 1, 2, 4]. The 497 writes are split as follows [0, 0, 257, 232, 1, 1, 1, 0, 5]. [2024-11-20 09:55:10,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:55:10,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:55:10,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:55:10,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:55:10,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (1/1) ... [2024-11-20 09:55:10,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:55:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:55:10,836 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 09:55:10,840 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 09:55:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-20 09:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-20 09:55:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-20 09:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-20 09:55:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:55:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 09:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-20 09:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-20 09:55:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-20 09:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-20 09:55:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 09:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:55:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:55:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 09:55:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 09:55:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 09:55:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 09:55:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 09:55:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-20 09:55:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-20 09:55:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:55:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 09:55:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 09:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 09:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 09:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 09:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-20 09:55:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-20 09:55:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:55:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-20 09:55:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-20 09:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-20 09:55:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-20 09:55:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:55:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 09:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 09:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 09:55:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-20 09:55:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-20 09:55:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-20 09:55:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 09:55:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:55:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 09:55:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 09:55:11,285 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:55:11,287 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:55:19,673 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2024-11-20 09:55:19,673 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:55:19,698 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:55:19,698 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 09:55:19,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:55:19 BoogieIcfgContainer [2024-11-20 09:55:19,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:55:19,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:55:19,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:55:19,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:55:19,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:55:07" (1/3) ... [2024-11-20 09:55:19,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237225b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:55:19, skipping insertion in model container [2024-11-20 09:55:19,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:55:10" (2/3) ... [2024-11-20 09:55:19,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237225b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:55:19, skipping insertion in model container [2024-11-20 09:55:19,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:55:19" (3/3) ... [2024-11-20 09:55:19,710 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_dynamic_harness.i [2024-11-20 09:55:19,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:55:19,727 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:55:19,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:55:19,820 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;@49f8f74f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:55:19,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:55:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 157 states have internal predecessors, (193), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 09:55:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-20 09:55:19,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:55:19,842 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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, 1, 1] [2024-11-20 09:55:19,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:55:19,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:55:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2028514092, now seen corresponding path program 1 times [2024-11-20 09:55:19,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:55:19,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702626330] [2024-11-20 09:55:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:55:19,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:56:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:56:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 09:56:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:56:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 09:56:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 09:56:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:56:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 09:56:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 09:56:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 09:56:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-20 09:56:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 09:56:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 09:56:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:56:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-20 09:56:35,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:56:35,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702626330] [2024-11-20 09:56:35,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702626330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:56:35,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:56:35,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:56:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829383389] [2024-11-20 09:56:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:56:35,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:56:35,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:56:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:56:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:56:35,530 INFO L87 Difference]: Start difference. First operand has 248 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 157 states have internal predecessors, (193), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 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 09:56:39,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:56:42,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:56:42,761 INFO L93 Difference]: Finished difference Result 500 states and 722 transitions. [2024-11-20 09:56:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:56:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-11-20 09:56:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:56:42,776 INFO L225 Difference]: With dead ends: 500 [2024-11-20 09:56:42,777 INFO L226 Difference]: Without dead ends: 255 [2024-11-20 09:56:42,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 09:56:42,785 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 116 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:56:42,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 289 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-20 09:56:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-20 09:56:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 243. [2024-11-20 09:56:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 152 states have (on average 1.2171052631578947) internal successors, (185), 153 states have internal predecessors, (185), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-20 09:56:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 328 transitions. [2024-11-20 09:56:42,869 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 328 transitions. Word has length 83 [2024-11-20 09:56:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:56:42,871 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 328 transitions. [2024-11-20 09:56:42,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 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 09:56:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 328 transitions. [2024-11-20 09:56:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-20 09:56:42,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:56:42,876 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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, 1, 1, 1, 1] [2024-11-20 09:56:42,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:56:42,877 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:56:42,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:56:42,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2028390636, now seen corresponding path program 1 times [2024-11-20 09:56:42,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:56:42,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042075423] [2024-11-20 09:56:42,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:56:42,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms