./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:36:53,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:36:53,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:36:53,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:36:53,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:36:53,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:36:53,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:36:53,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:36:53,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:36:53,122 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:36:53,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:36:53,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:36:53,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:36:53,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:36:53,123 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:36:53,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:36:53,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:36:53,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:53,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:36:53,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:36:53,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:36:53,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:36:53,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:36:53,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:36:53,126 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2025-03-04 02:36:53,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:36:53,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:36:53,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:36:53,376 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:36:53,376 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:36:53,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-03-04 02:36:54,516 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5639fa514/bf1be12a3b8c4d9eb1806cfa32ac9e44/FLAGc75bd650d [2025-03-04 02:36:54,953 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:36:54,954 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-03-04 02:36:54,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5639fa514/bf1be12a3b8c4d9eb1806cfa32ac9e44/FLAGc75bd650d [2025-03-04 02:36:55,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5639fa514/bf1be12a3b8c4d9eb1806cfa32ac9e44 [2025-03-04 02:36:55,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:36:55,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:36:55,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:55,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:36:55,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:36:55,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:55" (1/1) ... [2025-03-04 02:36:55,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68eebec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:55, skipping insertion in model container [2025-03-04 02:36:55,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:55" (1/1) ... [2025-03-04 02:36:55,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:36:55,305 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_array_list_swap_harness_negated.i[4493,4506] [2025-03-04 02:36:55,312 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_array_list_swap_harness_negated.i[4553,4566] [2025-03-04 02:36:55,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,762 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,771 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,771 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,773 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:55,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:56,121 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:36:56,136 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_array_list_swap_harness_negated.i[4493,4506] [2025-03-04 02:36:56,137 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4553,4566] [2025-03-04 02:36:56,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,200 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,206 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,206 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,294 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:56,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2025-03-04 02:36:56,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:56,454 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:36:56,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56 WrapperNode [2025-03-04 02:36:56,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:56,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:56,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:36:56,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:36:56,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,558 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-03-04 02:36:56,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:56,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:36:56,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:36:56,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:36:56,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,632 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 39, 5, 3, 6, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 2, 1, 5, 5]. The 238 writes are split as follows [232, 0, 3, 1, 1, 1, 0]. [2025-03-04 02:36:56,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:36:56,674 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:36:56,674 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:36:56,674 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:36:56,675 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (1/1) ... [2025-03-04 02:36:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:56,702 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) [2025-03-04 02:36:56,705 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 [2025-03-04 02:36:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:36:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:36:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:36:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:36:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:36:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:36:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:36:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:36:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:36:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:36:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:36:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:36:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:36:57,011 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:36:57,013 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:36:57,041 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:36:57,066 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:36:57,085 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-04 02:36:57,164 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 02:36:57,166 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:36:57,201 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-03-04 02:36:57,207 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7364: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 02:37:02,405 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-03-04 02:37:02,405 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:37:02,415 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:37:02,416 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:37:02,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:02 BoogieIcfgContainer [2025-03-04 02:37:02,416 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:37:02,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:37:02,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:37:02,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:37:02,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:36:55" (1/3) ... [2025-03-04 02:37:02,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30742f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:02, skipping insertion in model container [2025-03-04 02:37:02,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:56" (2/3) ... [2025-03-04 02:37:02,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30742f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:02, skipping insertion in model container [2025-03-04 02:37:02,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:02" (3/3) ... [2025-03-04 02:37:02,426 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2025-03-04 02:37:02,441 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:37:02,443 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness_negated.i that has 16 procedures, 178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:37:02,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:37:02,509 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;@25db6ea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:37:02,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:37:02,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-03-04 02:37:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-04 02:37:02,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:02,524 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:37:02,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:02,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash 206988999, now seen corresponding path program 1 times [2025-03-04 02:37:02,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:02,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260700398] [2025-03-04 02:37:02,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:02,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:06,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 02:37:07,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 02:37:07,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:07,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:37:08,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260700398] [2025-03-04 02:37:08,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260700398] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829831185] [2025-03-04 02:37:08,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:08,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:08,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:08,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:37:08,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:37:12,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 02:37:13,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 02:37:13,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:13,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:13,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:37:13,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:37:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-04 02:37:13,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:37:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829831185] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:37:13,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:37:13,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:37:13,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437320890] [2025-03-04 02:37:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:37:13,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:37:13,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:37:14,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:37:14,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:37:14,006 INFO L87 Difference]: Start difference. First operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:37:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:16,613 INFO L93 Difference]: Finished difference Result 351 states and 522 transitions. [2025-03-04 02:37:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:37:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2025-03-04 02:37:16,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:16,623 INFO L225 Difference]: With dead ends: 351 [2025-03-04 02:37:16,623 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:37:16,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:37:16,630 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 239 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:37:16,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 671 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-04 02:37:16,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:37:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:37:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 99 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2025-03-04 02:37:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-03-04 02:37:16,674 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-03-04 02:37:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:16,675 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-03-04 02:37:16,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:37:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-03-04 02:37:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-04 02:37:16,677 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:16,677 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:37:16,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:37:16,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:37:16,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:16,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2095157621, now seen corresponding path program 1 times [2025-03-04 02:37:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:16,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327158941] [2025-03-04 02:37:16,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:16,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:20,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 02:37:21,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 02:37:21,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:21,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:37:22,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:22,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327158941] [2025-03-04 02:37:22,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327158941] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:22,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712613667] [2025-03-04 02:37:22,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:22,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:22,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:22,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:37:22,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:37:26,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 02:37:27,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 02:37:27,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:27,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:27,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:37:27,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:37:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 02:37:28,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:37:28,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712613667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:37:28,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:37:28,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 02:37:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741947295] [2025-03-04 02:37:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:37:28,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:37:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:37:28,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:37:28,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 02:37:28,644 INFO L87 Difference]: Start difference. First operand 175 states and 240 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:37:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:32,441 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-03-04 02:37:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:37:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-03-04 02:37:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:32,445 INFO L225 Difference]: With dead ends: 322 [2025-03-04 02:37:32,445 INFO L226 Difference]: Without dead ends: 187 [2025-03-04 02:37:32,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:37:32,448 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:37:32,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-03-04 02:37:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-03-04 02:37:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-03-04 02:37:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2025-03-04 02:37:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-03-04 02:37:32,472 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-03-04 02:37:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:32,472 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-03-04 02:37:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:37:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-03-04 02:37:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-04 02:37:32,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:32,477 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:37:32,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 02:37:32,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:37:32,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:32,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1846006283, now seen corresponding path program 1 times [2025-03-04 02:37:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706005823] [2025-03-04 02:37:32,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:36,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-04 02:37:38,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-04 02:37:38,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:38,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-03-04 02:37:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706005823] [2025-03-04 02:37:44,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706005823] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810236449] [2025-03-04 02:37:44,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:44,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:37:44,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:37:49,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.