./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:40:47,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:40:47,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:40:47,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:40:47,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:40:47,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:40:47,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:40:47,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:40:47,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:40:47,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:40:47,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:40:47,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:40:47,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:40:47,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:40:47,288 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:40:47,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:40:47,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:40:47,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:40:47,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:40:47,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:40:47,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:40:47,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:40:47,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:40:47,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:40:47,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:40:47,295 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:40:47,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:40:47,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:40:47,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:40:47,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:40:47,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:40:47,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:40:47,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:40:47,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:40:47,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 [2024-11-16 19:40:47,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:40:47,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:40:47,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:40:47,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:40:47,591 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:40:47,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2024-11-16 19:40:48,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:40:49,479 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:40:49,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2024-11-16 19:40:49,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee2a8955/9f5e36a007be4c679b1194a281b843e2/FLAG1ce29ebf8 [2024-11-16 19:40:49,544 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee2a8955/9f5e36a007be4c679b1194a281b843e2 [2024-11-16 19:40:49,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:40:49,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:40:49,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:40:49,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:40:49,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:40:49,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:40:49" (1/1) ... [2024-11-16 19:40:49,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88915de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:49, skipping insertion in model container [2024-11-16 19:40:49,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:40:49" (1/1) ... [2024-11-16 19:40:49,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:40:49,927 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_negated.i[4495,4508] [2024-11-16 19:40:49,935 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_negated.i[4555,4568] [2024-11-16 19:40:50,694 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,696 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,697 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,713 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,714 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,715 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,716 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,721 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,722 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,725 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:50,725 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,111 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,118 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:40:51,208 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:40:51,219 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_negated.i[4495,4508] [2024-11-16 19:40:51,220 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_negated.i[4555,4568] [2024-11-16 19:40:51,271 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,273 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,273 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,276 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,284 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,284 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,285 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,286 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,287 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,288 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,288 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,288 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,392 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,397 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:40:51,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7715-7726] [2024-11-16 19:40:51,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:40:51,693 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:40:51,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51 WrapperNode [2024-11-16 19:40:51,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:40:51,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:40:51,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:40:51,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:40:51,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,864 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-11-16 19:40:51,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:40:51,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:40:51,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:40:51,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:40:51,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,975 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 47, 238, 7, 6, 3]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 10, 6, 5, 0, 1]. The 238 writes are split as follows [0, 3, 232, 0, 2, 1]. [2024-11-16 19:40:51,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:51,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,015 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:40:52,049 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:40:52,050 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:40:52,050 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:40:52,051 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (1/1) ... [2024-11-16 19:40:52,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:40:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:40:52,130 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) [2024-11-16 19:40:52,143 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 [2024-11-16 19:40:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:40:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-16 19:40:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-16 19:40:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-16 19:40:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-16 19:40:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:40:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:40:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:40:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:40:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:40:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:40:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 19:40:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 19:40:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:40:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:40:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:40:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:40:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:40:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:40:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:40:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:40:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:40:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:40:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:40:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-16 19:40:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-16 19:40:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:40:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:40:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:40:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:40:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:40:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:40:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-16 19:40:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:40:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:40:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:40:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:40:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:40:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:40:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:40:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-16 19:40:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-16 19:40:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-16 19:40:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:40:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:40:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:40:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:40:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:40:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:40:52,614 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:40:52,616 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:40:52,671 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-16 19:40:52,739 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-16 19:40:52,881 INFO L1250 $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; [2024-11-16 19:40:52,884 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:40:58,640 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:40:58,683 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-16 19:40:58,684 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:40:58,699 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:40:58,700 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:40:58,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:40:58 BoogieIcfgContainer [2024-11-16 19:40:58,700 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:40:58,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:40:58,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:40:58,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:40:58,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:40:49" (1/3) ... [2024-11-16 19:40:58,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:40:58, skipping insertion in model container [2024-11-16 19:40:58,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:51" (2/3) ... [2024-11-16 19:40:58,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:40:58, skipping insertion in model container [2024-11-16 19:40:58,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:40:58" (3/3) ... [2024-11-16 19:40:58,709 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness_negated.i [2024-11-16 19:40:58,724 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:40:58,724 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:40:58,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:40:58,797 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;@2f6e268a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:40:58,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:40:58,800 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) [2024-11-16 19:40:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 19:40:58,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:40:58,814 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] [2024-11-16 19:40:58,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:40:58,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:40:58,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1993413781, now seen corresponding path program 1 times [2024-11-16 19:40:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:40:58,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351179261] [2024-11-16 19:40:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:40:58,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:41:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:41:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:41:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:41:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:41:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:41:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 19:41:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:41:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 19:41:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 19:41:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:04,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 19:41:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:05,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 19:41:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 19:41:05,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:41:05,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351179261] [2024-11-16 19:41:05,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351179261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:41:05,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:41:05,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:41:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284131276] [2024-11-16 19:41:05,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:41:05,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:41:05,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:41:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:41:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:41:05,059 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) [2024-11-16 19:41:09,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:41:13,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:41:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:41:17,322 INFO L93 Difference]: Finished difference Result 251 states and 340 transitions. [2024-11-16 19:41:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:41:17,325 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 [2024-11-16 19:41:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:41:17,333 INFO L225 Difference]: With dead ends: 251 [2024-11-16 19:41:17,334 INFO L226 Difference]: Without dead ends: 125 [2024-11-16 19:41:17,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:41:17,341 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 89 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s 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, 11.7s IncrementalHoareTripleChecker+Time [2024-11-16 19:41:17,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-16 19:41:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-16 19:41:17,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2024-11-16 19:41:17,397 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) [2024-11-16 19:41:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-11-16 19:41:17,405 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2024-11-16 19:41:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:41:17,406 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-11-16 19:41:17,406 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) [2024-11-16 19:41:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-11-16 19:41:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 19:41:17,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:41:17,411 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] [2024-11-16 19:41:17,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:41:17,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:41:17,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:41:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1224253304, now seen corresponding path program 1 times [2024-11-16 19:41:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:41:17,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747631632] [2024-11-16 19:41:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:41:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:41:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:41:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:41:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:41:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:41:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:41:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:23,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 19:41:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:41:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 19:41:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 19:41:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 19:41:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 19:41:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-16 19:41:24,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:41:24,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747631632] [2024-11-16 19:41:24,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747631632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:41:24,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380699285] [2024-11-16 19:41:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:41:24,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:41:24,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:41:24,349 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) [2024-11-16 19:41:24,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:41:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:29,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 4081 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 19:41:29,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:41:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 19:41:30,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 19:41:30,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380699285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:41:30,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 19:41:30,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-16 19:41:30,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414134247] [2024-11-16 19:41:30,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:41:30,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:41:30,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:41:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:41:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 19:41:30,682 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) [2024-11-16 19:41:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:41:32,634 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2024-11-16 19:41:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:41:32,635 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 [2024-11-16 19:41:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:41:32,637 INFO L225 Difference]: With dead ends: 193 [2024-11-16 19:41:32,637 INFO L226 Difference]: Without dead ends: 116 [2024-11-16 19:41:32,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:41:32,639 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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 [2024-11-16 19:41:32,640 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] [2024-11-16 19:41:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-16 19:41:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-16 19:41:32,655 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) [2024-11-16 19:41:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2024-11-16 19:41:32,657 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2024-11-16 19:41:32,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:41:32,658 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2024-11-16 19:41:32,659 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) [2024-11-16 19:41:32,659 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2024-11-16 19:41:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 19:41:32,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:41:32,665 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] [2024-11-16 19:41:32,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 19:41:32,866 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 [2024-11-16 19:41:32,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:41:32,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:41:32,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1856883318, now seen corresponding path program 1 times [2024-11-16 19:41:32,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:41:32,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212392146] [2024-11-16 19:41:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:41:32,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:41:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:38,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:41:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:38,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:41:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:38,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:41:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:38,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:41:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:38,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:41:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 19:41:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:41:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:41:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 19:41:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 19:41:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:39,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 19:41:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:40,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 19:41:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:40,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 19:41:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-16 19:41:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:41:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212392146] [2024-11-16 19:41:40,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212392146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:41:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050933579] [2024-11-16 19:41:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:41:40,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:41:40,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:41:40,472 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) [2024-11-16 19:41:40,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 19:41:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:41:45,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 19:41:45,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:41:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 19:41:47,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 19:41:47,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050933579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:41:47,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 19:41:47,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-16 19:41:47,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974825237] [2024-11-16 19:41:47,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:41:47,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 19:41:47,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:41:47,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 19:41:47,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-16 19:41:47,634 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) [2024-11-16 19:41:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:41:51,157 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2024-11-16 19:41:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:41:51,158 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 [2024-11-16 19:41:51,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:41:51,160 INFO L225 Difference]: With dead ends: 182 [2024-11-16 19:41:51,160 INFO L226 Difference]: Without dead ends: 114 [2024-11-16 19:41:51,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-16 19:41:51,164 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 19:41:51,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 19:41:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-16 19:41:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-16 19:41:51,184 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) [2024-11-16 19:41:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-16 19:41:51,186 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2024-11-16 19:41:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:41:51,186 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-16 19:41:51,187 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) [2024-11-16 19:41:51,187 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-16 19:41:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 19:41:51,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:41:51,192 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] [2024-11-16 19:41:51,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 19:41:51,392 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 [2024-11-16 19:41:51,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:41:51,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:41:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1637822364, now seen corresponding path program 1 times [2024-11-16 19:41:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:41:51,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436333179] [2024-11-16 19:41:51,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:41:51,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:41:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:42:06,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:42:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:42:06,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:42:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:42:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:42:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat