./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_init_dynamic_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:36:07,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:36:07,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:36:07,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:36:07,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:36:07,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:36:07,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:36:07,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:36:07,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:36:07,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:36:07,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:36:07,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:36:07,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:36:07,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:36:07,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:36:07,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:36:07,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:36:07,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:36:07,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:36:07,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:36:07,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:36:07,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:36:07,985 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:36:07,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:36:07,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:36:07,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:36:07,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:36:07,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:36:07,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:36:07,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:07,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:36:07,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:36:07,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:36:07,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:36:07,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:36:07,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:36:07,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:36:07,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:36:07,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:36:07,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad [2024-11-12 08:36:08,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:36:08,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:36:08,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:36:08,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:36:08,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:36:08,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2024-11-12 08:36:09,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:36:10,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:36:10,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2024-11-12 08:36:10,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7390dbd1d/fe20ed56db664e758a89418ed5a01f27/FLAGa812492b6 [2024-11-12 08:36:10,425 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7390dbd1d/fe20ed56db664e758a89418ed5a01f27 [2024-11-12 08:36:10,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:36:10,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:36:10,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:10,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:36:10,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:36:10,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:10" (1/1) ... [2024-11-12 08:36:10,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758c2f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:10, skipping insertion in model container [2024-11-12 08:36:10,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:10" (1/1) ... [2024-11-12 08:36:10,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:36:10,884 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_init_dynamic_harness.i[4501,4514] [2024-11-12 08:36:10,895 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_init_dynamic_harness.i[4561,4574] [2024-11-12 08:36:11,774 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,775 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,775 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,776 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,792 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,795 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,798 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,799 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,801 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:11,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,232 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:12,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:36:12,386 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_init_dynamic_harness.i[4501,4514] [2024-11-12 08:36:12,387 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_init_dynamic_harness.i[4561,4574] [2024-11-12 08:36:12,511 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,515 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,516 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,516 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,517 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,529 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,532 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,534 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,534 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,535 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,539 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,540 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,540 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,597 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:12,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-12 08:36:12,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:12,831 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:36:12,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12 WrapperNode [2024-11-12 08:36:12,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:12,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:12,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:36:12,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:36:12,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:12,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:12,970 INFO L138 Inliner]: procedures = 679, calls = 1558, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 597 [2024-11-12 08:36:12,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:12,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:36:12,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:36:12,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:36:12,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:12,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:12,997 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,075 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 5, 6, 26]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 5, 1, 5]. The 238 writes are split as follows [0, 232, 0, 1, 5]. [2024-11-12 08:36:13,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:36:13,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:36:13,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:36:13,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:36:13,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (1/1) ... [2024-11-12 08:36:13,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:13,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:36:13,197 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) [2024-11-12 08:36:13,201 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 [2024-11-12 08:36:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-12 08:36:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-12 08:36:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:36:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-12 08:36:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-12 08:36:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:36:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:36:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-12 08:36:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:36:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-12 08:36:13,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-12 08:36:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:36:13,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:36:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:36:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:36:13,249 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:36:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:36:13,249 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-12 08:36:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-12 08:36:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-12 08:36:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-12 08:36:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:36:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-12 08:36:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-12 08:36:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-12 08:36:13,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-12 08:36:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:36:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-12 08:36:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:36:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:36:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:36:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:36:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:36:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:36:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:36:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-12 08:36:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-12 08:36:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:36:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:36:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:36:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:36:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:36:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:36:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:36:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:36:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:36:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:36:13,567 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:36:13,569 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:36:20,016 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-11-12 08:36:20,016 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:36:20,032 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:36:20,033 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 08:36:20,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:20 BoogieIcfgContainer [2024-11-12 08:36:20,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:36:20,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:36:20,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:36:20,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:36:20,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:36:10" (1/3) ... [2024-11-12 08:36:20,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b0484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:20, skipping insertion in model container [2024-11-12 08:36:20,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:12" (2/3) ... [2024-11-12 08:36:20,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b0484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:20, skipping insertion in model container [2024-11-12 08:36:20,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:20" (3/3) ... [2024-11-12 08:36:20,043 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2024-11-12 08:36:20,060 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:36:20,060 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:36:20,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:36:20,147 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;@6f93d2b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:36:20,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:36:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-12 08:36:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-12 08:36:20,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:20,163 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:20,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:20,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1052512289, now seen corresponding path program 1 times [2024-11-12 08:36:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:20,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215393880] [2024-11-12 08:36:20,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:20,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:36:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:36:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:36:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 08:36:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 08:36:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:25,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 08:36:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:26,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 08:36:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:26,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 08:36:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:26,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 08:36:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:26,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:36:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:36:26,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:36:26,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215393880] [2024-11-12 08:36:26,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215393880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:36:26,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:36:26,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:36:26,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459069480] [2024-11-12 08:36:26,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:36:26,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:36:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:36:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:36:26,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:36:26,328 INFO L87 Difference]: Start difference. First operand has 144 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-12 08:36:30,426 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 [] [2024-11-12 08:36:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:36:32,631 INFO L93 Difference]: Finished difference Result 281 states and 381 transitions. [2024-11-12 08:36:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:36:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2024-11-12 08:36:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:36:32,643 INFO L225 Difference]: With dead ends: 281 [2024-11-12 08:36:32,643 INFO L226 Difference]: Without dead ends: 142 [2024-11-12 08:36:32,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:36:32,650 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-12 08:36:32,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 159 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-12 08:36:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-12 08:36:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2024-11-12 08:36:32,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.188235294117647) internal successors, (101), 87 states have internal predecessors, (101), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-12 08:36:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 171 transitions. [2024-11-12 08:36:32,711 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 171 transitions. Word has length 64 [2024-11-12 08:36:32,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:36:32,712 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 171 transitions. [2024-11-12 08:36:32,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-12 08:36:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 171 transitions. [2024-11-12 08:36:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-12 08:36:32,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:32,715 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:32,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:36:32,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:32,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1836148345, now seen corresponding path program 1 times [2024-11-12 08:36:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:32,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152413511] [2024-11-12 08:36:32,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:36:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:36:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:36:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 08:36:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 08:36:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 08:36:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 08:36:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 08:36:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 08:36:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:36:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:36:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:36:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:36:40,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152413511] [2024-11-12 08:36:40,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152413511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:36:40,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:36:40,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 08:36:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135933769] [2024-11-12 08:36:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:36:40,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:36:40,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:36:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:36:40,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:36:40,807 INFO L87 Difference]: Start difference. First operand 137 states and 171 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-12 08:36:44,885 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 [] [2024-11-12 08:36:54,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:36:54,508 INFO L93 Difference]: Finished difference Result 153 states and 189 transitions. [2024-11-12 08:36:54,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 08:36:54,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2024-11-12 08:36:54,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:36:54,512 INFO L225 Difference]: With dead ends: 153 [2024-11-12 08:36:54,512 INFO L226 Difference]: Without dead ends: 151 [2024-11-12 08:36:54,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-12 08:36:54,514 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-12 08:36:54,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 270 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 549 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2024-11-12 08:36:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-12 08:36:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2024-11-12 08:36:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 91 states have internal predecessors, (104), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-12 08:36:54,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2024-11-12 08:36:54,541 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 70 [2024-11-12 08:36:54,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:36:54,542 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2024-11-12 08:36:54,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-12 08:36:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2024-11-12 08:36:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-12 08:36:54,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:54,545 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:54,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:36:54,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:54,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:54,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1834301303, now seen corresponding path program 1 times [2024-11-12 08:36:54,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:54,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43503727] [2024-11-12 08:36:54,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:54,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:37:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 08:37:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 08:37:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 08:37:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 08:37:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 08:37:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 08:37:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:37:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:37:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:37:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:01,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43503727] [2024-11-12 08:37:01,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43503727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:37:01,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:37:01,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:37:01,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587446824] [2024-11-12 08:37:01,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:37:01,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:37:01,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:01,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:37:01,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:37:01,768 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-12 08:37:05,847 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 [] [2024-11-12 08:37:13,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:37:13,273 INFO L93 Difference]: Finished difference Result 270 states and 332 transitions. [2024-11-12 08:37:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 08:37:13,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2024-11-12 08:37:13,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:37:13,276 INFO L225 Difference]: With dead ends: 270 [2024-11-12 08:37:13,276 INFO L226 Difference]: Without dead ends: 148 [2024-11-12 08:37:13,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-12 08:37:13,278 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 129 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 92 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-12 08:37:13,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 231 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2024-11-12 08:37:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-12 08:37:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2024-11-12 08:37:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 92 states have internal predecessors, (105), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-12 08:37:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 177 transitions. [2024-11-12 08:37:13,303 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 177 transitions. Word has length 70 [2024-11-12 08:37:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:37:13,304 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 177 transitions. [2024-11-12 08:37:13,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-12 08:37:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 177 transitions. [2024-11-12 08:37:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-12 08:37:13,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:37:13,312 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:37:13,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 08:37:13,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:37:13,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:37:13,313 INFO L85 PathProgramCache]: Analyzing trace with hash -697824639, now seen corresponding path program 1 times [2024-11-12 08:37:13,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:37:13,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485051462] [2024-11-12 08:37:13,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:13,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:37:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 08:37:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 08:37:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 08:37:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 08:37:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 08:37:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 08:37:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:21,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 08:37:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:21,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:37:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:37:21,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:21,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485051462] [2024-11-12 08:37:21,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485051462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:37:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362881185] [2024-11-12 08:37:21,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:21,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:37:21,070 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) [2024-11-12 08:37:21,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 08:37:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:26,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 08:37:26,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:37:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:37:26,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:37:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-12 08:37:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362881185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:37:28,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:37:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2024-11-12 08:37:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205154090] [2024-11-12 08:37:28,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:37:28,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 08:37:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 08:37:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-12 08:37:28,831 INFO L87 Difference]: Start difference. First operand 143 states and 177 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)