./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.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_front_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 db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:33:40,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:33:40,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:33:40,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:33:40,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:33:40,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:33:40,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:33:40,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:33:40,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:33:40,919 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:33:40,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:33:40,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:33:40,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:33:40,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:33:40,920 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:33:40,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:33:40,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:33:40,921 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:40,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:33:40,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:33:40,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:33:40,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:33:40,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:33:40,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:33:40,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:33:40,922 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 -> db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de [2025-03-04 02:33:41,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:33:41,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:33:41,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:33:41,141 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:33:41,142 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:33:41,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-03-04 02:33:42,336 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8756f8224/84e8aba70e4a4095acc6ff1e56fc0df9/FLAG35fc657d8 [2025-03-04 02:33:42,841 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:33:42,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-03-04 02:33:42,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8756f8224/84e8aba70e4a4095acc6ff1e56fc0df9/FLAG35fc657d8 [2025-03-04 02:33:43,390 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8756f8224/84e8aba70e4a4095acc6ff1e56fc0df9 [2025-03-04 02:33:43,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:33:43,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:33:43,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:43,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:33:43,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:33:43,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:43" (1/1) ... [2025-03-04 02:33:43,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3717b099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:43, skipping insertion in model container [2025-03-04 02:33:43,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:43" (1/1) ... [2025-03-04 02:33:43,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:33:43,682 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_front_harness.i[4494,4507] [2025-03-04 02:33:43,690 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_front_harness.i[4554,4567] [2025-03-04 02:33:44,213 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,214 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,214 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,214 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,217 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,237 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:44,738 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:33:44,747 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_front_harness.i[4494,4507] [2025-03-04 02:33:44,748 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_front_harness.i[4554,4567] [2025-03-04 02:33:44,797 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,800 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,805 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,911 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,918 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:44,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7767-7778] [2025-03-04 02:33:44,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:45,083 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:33:45,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45 WrapperNode [2025-03-04 02:33:45,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:45,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:45,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:33:45,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:33:45,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,182 INFO L138 Inliner]: procedures = 680, calls = 1682, calls flagged for inlining = 53, calls inlined = 8, statements flattened = 662 [2025-03-04 02:33:45,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:45,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:33:45,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:33:45,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:33:45,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,252 INFO L175 MemorySlicer]: Split 314 memory accesses to 6 slices as follows [238, 2, 6, 3, 56, 9]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 10, 5]. The 239 writes are split as follows [232, 0, 2, 1, 3, 1]. [2025-03-04 02:33:45,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,276 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:33:45,303 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:33:45,303 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:33:45,303 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:33:45,304 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (1/1) ... [2025-03-04 02:33:45,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:45,334 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 02:33:45,340 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 02:33:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:33:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:33:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:33:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:33:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:33:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:33:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:33:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:33:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 02:33:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 02:33:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:33:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:33:45,626 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:33:45,628 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:33:45,659 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:33:45,679 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 02:33:45,695 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:33:45,745 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-04 02:33:45,808 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 02:33:45,813 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:33:45,836 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7388: havoc #t~ret687.base, #t~ret687.offset; [2025-03-04 02:33:51,083 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3342: havoc aws_array_list_front_#t~ret180#1; [2025-03-04 02:33:51,162 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-03-04 02:33:51,162 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:33:51,175 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:33:51,176 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:33:51,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:51 BoogieIcfgContainer [2025-03-04 02:33:51,176 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:33:51,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:33:51,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:33:51,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:33:51,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:33:43" (1/3) ... [2025-03-04 02:33:51,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a123aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:51, skipping insertion in model container [2025-03-04 02:33:51,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:45" (2/3) ... [2025-03-04 02:33:51,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a123aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:51, skipping insertion in model container [2025-03-04 02:33:51,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:51" (3/3) ... [2025-03-04 02:33:51,189 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_front_harness.i [2025-03-04 02:33:51,201 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:33:51,204 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_front_harness.i that has 18 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:33:51,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:33:51,278 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;@4e4ef2db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:33:51,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:33:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-03-04 02:33:51,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 02:33:51,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:51,296 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:51,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:51,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -411417386, now seen corresponding path program 1 times [2025-03-04 02:33:51,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:51,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136033839] [2025-03-04 02:33:51,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:55,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:33:56,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:33:56,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:56,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-03-04 02:33:56,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:56,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136033839] [2025-03-04 02:33:56,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136033839] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:56,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936909145] [2025-03-04 02:33:56,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:56,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:56,865 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 02:33:56,867 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 02:34:01,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:34:01,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:34:01,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:01,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:01,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 4252 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:34:01,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:34:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-03-04 02:34:01,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:34:01,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936909145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:01,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:34:01,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:34:01,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10409252] [2025-03-04 02:34:01,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:01,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:34:01,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:01,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:34:01,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:34:01,913 INFO L87 Difference]: Start difference. First operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:34:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:01,947 INFO L93 Difference]: Finished difference Result 365 states and 519 transitions. [2025-03-04 02:34:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:34:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2025-03-04 02:34:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:01,955 INFO L225 Difference]: With dead ends: 365 [2025-03-04 02:34:01,955 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 02:34:01,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:34:01,961 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:01,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:34:01,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 02:34:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-03-04 02:34:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 105 states have internal predecessors, (121), 56 states have call successors, (56), 17 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-04 02:34:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-03-04 02:34:02,001 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 129 [2025-03-04 02:34:02,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:02,002 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-03-04 02:34:02,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:34:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-03-04 02:34:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 02:34:02,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:02,004 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:02,019 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 02:34:02,205 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 02:34:02,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:02,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:02,206 INFO L85 PathProgramCache]: Analyzing trace with hash -381902376, now seen corresponding path program 1 times [2025-03-04 02:34:02,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:02,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641133186] [2025-03-04 02:34:02,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:06,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:34:06,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:34:06,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:06,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-04 02:34:08,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:08,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641133186] [2025-03-04 02:34:08,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641133186] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:08,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:08,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 02:34:08,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595185574] [2025-03-04 02:34:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:08,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 02:34:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:08,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 02:34:08,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 02:34:08,768 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-04 02:34:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:09,335 INFO L93 Difference]: Finished difference Result 306 states and 403 transitions. [2025-03-04 02:34:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:34:09,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2025-03-04 02:34:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:09,339 INFO L225 Difference]: With dead ends: 306 [2025-03-04 02:34:09,342 INFO L226 Difference]: Without dead ends: 195 [2025-03-04 02:34:09,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:34:09,344 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 6 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:09,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1351 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 02:34:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-03-04 02:34:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2025-03-04 02:34:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 113 states have (on average 1.1592920353982301) internal successors, (131), 114 states have internal predecessors, (131), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2025-03-04 02:34:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 250 transitions. [2025-03-04 02:34:09,369 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 250 transitions. Word has length 129 [2025-03-04 02:34:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:09,369 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 250 transitions. [2025-03-04 02:34:09,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-04 02:34:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 250 transitions. [2025-03-04 02:34:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 02:34:09,371 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:09,371 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:09,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:34:09,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:09,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 56107127, now seen corresponding path program 1 times [2025-03-04 02:34:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494688743] [2025-03-04 02:34:09,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:09,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:13,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:34:13,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:34:13,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:13,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-04 02:34:15,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:15,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494688743] [2025-03-04 02:34:15,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494688743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:15,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:15,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:34:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300315857] [2025-03-04 02:34:15,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:15,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:34:15,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:15,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:34:15,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:34:15,872 INFO L87 Difference]: Start difference. First operand 191 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:34:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:16,579 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2025-03-04 02:34:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 02:34:16,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2025-03-04 02:34:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:16,583 INFO L225 Difference]: With dead ends: 321 [2025-03-04 02:34:16,583 INFO L226 Difference]: Without dead ends: 216 [2025-03-04 02:34:16,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:34:16,587 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 14 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:16,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1624 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 02:34:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-03-04 02:34:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 197. [2025-03-04 02:34:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.1551724137931034) internal successors, (134), 117 states have internal predecessors, (134), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2025-03-04 02:34:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2025-03-04 02:34:16,607 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 129 [2025-03-04 02:34:16,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:16,607 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2025-03-04 02:34:16,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:34:16,608 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2025-03-04 02:34:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 02:34:16,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:16,613 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:16,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 02:34:16,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:16,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:16,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2006407382, now seen corresponding path program 1 times [2025-03-04 02:34:16,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:16,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338216050] [2025-03-04 02:34:16,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:16,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:20,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:34:20,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:34:20,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:20,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2025-03-04 02:34:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338216050] [2025-03-04 02:34:22,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338216050] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987070339] [2025-03-04 02:34:22,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:22,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:22,865 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 02:34:22,867 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 02:34:27,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:34:27,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:34:27,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:27,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:27,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 4246 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-04 02:34:27,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:34:30,222 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#4.offset|))) is different from true [2025-03-04 02:34:30,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 02:34:30,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-04 02:34:30,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 02:34:30,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-04 02:34:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 87 proven. 32 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-04 02:34:38,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 02:34:45,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987070339] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:45,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 02:34:45,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-03-04 02:34:45,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951770059] [2025-03-04 02:34:45,997 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 02:34:45,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 02:34:45,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:45,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 02:34:45,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-03-04 02:34:45,999 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2025-03-04 02:35:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:11,429 INFO L93 Difference]: Finished difference Result 545 states and 734 transitions. [2025-03-04 02:35:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 02:35:11,430 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) Word has length 129 [2025-03-04 02:35:11,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:11,434 INFO L225 Difference]: With dead ends: 545 [2025-03-04 02:35:11,434 INFO L226 Difference]: Without dead ends: 375 [2025-03-04 02:35:11,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 192 SyntacticMatches, 25 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=171, Invalid=1238, Unknown=1, NotChecked=72, Total=1482 [2025-03-04 02:35:11,436 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 265 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 200 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 474 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:11,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 661 Invalid, 2678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [200 Valid, 2001 Invalid, 3 Unknown, 474 Unchecked, 21.3s Time] [2025-03-04 02:35:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-04 02:35:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2025-03-04 02:35:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 219 states have (on average 1.1461187214611872) internal successors, (251), 223 states have internal predecessors, (251), 118 states have call successors, (118), 32 states have call predecessors, (118), 35 states have return successors, (135), 117 states have call predecessors, (135), 114 states have call successors, (135) [2025-03-04 02:35:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 504 transitions. [2025-03-04 02:35:11,469 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 504 transitions. Word has length 129 [2025-03-04 02:35:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:11,469 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 504 transitions. [2025-03-04 02:35:11,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2025-03-04 02:35:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 504 transitions. [2025-03-04 02:35:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-03-04 02:35:11,471 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:11,471 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:11,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:35:11,672 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,SelfDestructingSolverStorable3 [2025-03-04 02:35:11,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:11,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:11,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1809718854, now seen corresponding path program 1 times [2025-03-04 02:35:11,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:11,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410789726] [2025-03-04 02:35:11,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:15,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-04 02:35:15,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-04 02:35:15,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:15,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat