./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_length_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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:43:42,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:43:43,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:43:43,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:43:43,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:43:43,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:43:43,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:43:43,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:43:43,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:43:43,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:43:43,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:43:43,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:43:43,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:43:43,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:43:43,101 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:43:43,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:43:43,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:43:43,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:43:43,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:43:43,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:43:43,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:43:43,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:43:43,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:43:43,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:43:43,105 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:43:43,105 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:43:43,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:43:43,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:43:43,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:43:43,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:43:43,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:43:43,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:43:43,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:43:43,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:43:43,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:43:43,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:43:43,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:43:43,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:43:43,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:43:43,115 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2024-11-10 10:43:43,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:43:43,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:43:43,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:43:43,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:43:43,432 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:43:43,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-11-10 10:43:45,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:43:45,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:43:45,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-11-10 10:43:45,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726a719ad/d77c7c4a6a7b4b579c1f2c6a7ab9384b/FLAGfc270dabe [2024-11-10 10:43:45,626 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726a719ad/d77c7c4a6a7b4b579c1f2c6a7ab9384b [2024-11-10 10:43:45,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:43:45,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:43:45,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:43:45,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:43:45,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:43:45,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:45" (1/1) ... [2024-11-10 10:43:45,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631e9abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:45, skipping insertion in model container [2024-11-10 10:43:45,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:45" (1/1) ... [2024-11-10 10:43:45,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:43:46,106 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_length_harness.i[4495,4508] [2024-11-10 10:43:46,117 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_length_harness.i[4555,4568] [2024-11-10 10:43:47,374 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,376 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,376 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,377 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,378 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,390 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,390 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,392 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,399 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,401 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,405 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,406 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,406 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,179 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,186 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:43:48,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:43:48,423 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_length_harness.i[4495,4508] [2024-11-10 10:43:48,428 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_length_harness.i[4555,4568] [2024-11-10 10:43:48,485 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,487 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,497 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,498 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,499 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,502 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,504 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,504 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,505 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,505 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,582 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,589 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:48,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-11-10 10:43:48,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:43:48,893 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:43:48,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48 WrapperNode [2024-11-10 10:43:48,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:43:48,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:43:48,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:43:48,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:43:48,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:48,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,068 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-11-10 10:43:49,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:43:49,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:43:49,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:43:49,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:43:49,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,187 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 238, 7, 3, 47, 6]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 1, 10, 0]. The 238 writes are split as follows [0, 232, 0, 1, 3, 2]. [2024-11-10 10:43:49,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,228 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:43:49,270 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:43:49,270 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:43:49,270 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:43:49,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (1/1) ... [2024-11-10 10:43:49,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:43:49,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:43:49,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:43:49,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:43:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:43:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-10 10:43:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-10 10:43:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:43:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:43:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:43:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:43:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:43:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:43:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:43:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:43:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:43:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:43:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:43:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:43:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:43:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-10 10:43:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-10 10:43:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:43:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:43:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:43:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:43:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:43:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:43:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-10 10:43:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-10 10:43:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:43:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:43:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:43:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:43:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:43:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:43:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:43:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:43:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:43:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:43:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:43:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:43:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:43:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:43:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:43:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:43:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:43:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-10 10:43:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-10 10:43:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:43:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:43:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:43:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-10 10:43:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:43:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:43:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:43:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:43:49,771 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:43:49,774 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:43:49,823 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-10 10:43:49,884 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-10 10:43:49,985 INFO L1247 $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; [2024-11-10 10:43:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:43:55,919 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:43:55,974 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-10 10:43:55,975 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:43:55,993 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:43:55,993 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:43:55,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:43:55 BoogieIcfgContainer [2024-11-10 10:43:55,994 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:43:55,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:43:55,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:43:56,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:43:56,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:43:45" (1/3) ... [2024-11-10 10:43:56,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c62732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:56, skipping insertion in model container [2024-11-10 10:43:56,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:48" (2/3) ... [2024-11-10 10:43:56,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c62732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:56, skipping insertion in model container [2024-11-10 10:43:56,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:43:55" (3/3) ... [2024-11-10 10:43:56,003 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2024-11-10 10:43:56,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:43:56,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:43:56,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:43:56,121 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;@3ce599a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:43:56,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:43:56,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 80 states have internal predecessors, (95), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-10 10:43:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 10:43:56,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:43:56,144 INFO L215 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, 1, 1] [2024-11-10 10:43:56,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:43:56,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:43:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1993413781, now seen corresponding path program 1 times [2024-11-10 10:43:56,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:43:56,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012709497] [2024-11-10 10:43:56,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:02,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:02,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:02,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:02,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:02,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 10:44:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:44:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:44:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 10:44:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 10:44:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 10:44:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012709497] [2024-11-10 10:44:03,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012709497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:03,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:44:03,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:44:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201991375] [2024-11-10 10:44:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:03,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:44:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:44:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:44:03,201 INFO L87 Difference]: Start difference. First operand has 124 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 80 states have internal predecessors, (95), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-10 10:44:07,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:44:11,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:44:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:15,885 INFO L93 Difference]: Finished difference Result 251 states and 340 transitions. [2024-11-10 10:44:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:44:15,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2024-11-10 10:44:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:15,897 INFO L225 Difference]: With dead ends: 251 [2024-11-10 10:44:15,898 INFO L226 Difference]: Without dead ends: 125 [2024-11-10 10:44:15,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:44:15,909 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 89 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:15,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2024-11-10 10:44:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-10 10:44:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2024-11-10 10:44:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 10:44:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-11-10 10:44:15,972 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2024-11-10 10:44:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:15,974 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-11-10 10:44:15,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-10 10:44:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-11-10 10:44:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 10:44:15,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:15,981 INFO L215 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, 1, 1] [2024-11-10 10:44:15,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:44:15,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:15,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1224253304, now seen corresponding path program 1 times [2024-11-10 10:44:15,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:15,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360174483] [2024-11-10 10:44:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:15,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:22,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 10:44:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:44:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:44:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 10:44:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 10:44:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-10 10:44:23,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:23,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360174483] [2024-11-10 10:44:23,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360174483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:44:23,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746321158] [2024-11-10 10:44:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:23,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:44:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:44:23,496 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) [2024-11-10 10:44:23,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:44:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:28,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 4081 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:44:28,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:44:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-10 10:44:30,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:44:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746321158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:30,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:44:30,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-10 10:44:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152182524] [2024-11-10 10:44:30,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:30,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:44:30,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:30,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:44:30,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-10 10:44:30,327 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-11-10 10:44:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:32,326 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2024-11-10 10:44:32,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:44:32,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 71 [2024-11-10 10:44:32,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:32,331 INFO L225 Difference]: With dead ends: 193 [2024-11-10 10:44:32,331 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 10:44:32,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:44:32,333 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:32,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 10:44:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 10:44:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-10 10:44:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 74 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2024-11-10 10:44:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2024-11-10 10:44:32,353 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2024-11-10 10:44:32,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:32,354 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2024-11-10 10:44:32,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-11-10 10:44:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2024-11-10 10:44:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-10 10:44:32,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:32,358 INFO L215 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, 1, 1] [2024-11-10 10:44:32,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 10:44:32,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:44:32,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:32,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1856883318, now seen corresponding path program 1 times [2024-11-10 10:44:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:32,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561932792] [2024-11-10 10:44:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:38,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:38,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:39,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:39,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:39,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:39,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:44:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 10:44:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:44:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:44:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:40,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 10:44:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:41,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 10:44:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-10 10:44:41,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:41,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561932792] [2024-11-10 10:44:41,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561932792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:44:41,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257987145] [2024-11-10 10:44:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:41,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:44:41,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:44:41,024 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) [2024-11-10 10:44:41,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 10:44:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:46,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 10:44:46,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:44:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 10:44:48,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:44:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257987145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:44:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-10 10:44:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982643670] [2024-11-10 10:44:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:48,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:44:48,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:44:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-10 10:44:48,548 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2024-11-10 10:44:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:52,049 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2024-11-10 10:44:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:44:52,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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 86 [2024-11-10 10:44:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:52,052 INFO L225 Difference]: With dead ends: 182 [2024-11-10 10:44:52,052 INFO L226 Difference]: Without dead ends: 114 [2024-11-10 10:44:52,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-10 10:44:52,056 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:52,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-10 10:44:52,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-10 10:44:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-10 10:44:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 10:44:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-10 10:44:52,074 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2024-11-10 10:44:52,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:52,077 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-10 10:44:52,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2024-11-10 10:44:52,078 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-10 10:44:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 10:44:52,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:52,080 INFO L215 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, 1, 1] [2024-11-10 10:44:52,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 10:44:52,284 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,SelfDestructingSolverStorable2 [2024-11-10 10:44:52,284 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:52,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1637822364, now seen corresponding path program 1 times [2024-11-10 10:44:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:52,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923699967] [2024-11-10 10:44:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:52,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat