./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_back_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 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:54:15,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:54:15,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:54:15,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:54:15,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:54:15,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:54:15,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:54:15,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:54:15,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:54:15,917 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:54:15,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:54:15,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:54:15,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:54:15,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:54:15,919 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:54:15,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:54:15,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:54:15,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:54:15,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:54:15,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:54:15,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:54:15,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:54:15,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:54:15,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:54:15,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:54:15,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:54:15,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:54:15,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:54:15,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:54:15,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:54:15,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:54:15,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:54:15,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:54:15,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:54:15,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:54:15,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:54:15,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:54:15,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:54:15,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:54:15,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 [2024-11-09 02:54:16,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:54:16,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:54:16,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:54:16,172 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:54:16,173 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:54:16,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2024-11-09 02:54:17,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:54:18,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:54:18,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2024-11-09 02:54:18,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebbe08e4c/ab51b14b205444bf91f06adea6cceeb9/FLAG19c43b066 [2024-11-09 02:54:18,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebbe08e4c/ab51b14b205444bf91f06adea6cceeb9 [2024-11-09 02:54:18,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:54:18,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:54:18,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:54:18,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:54:18,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:54:18,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:54:18" (1/1) ... [2024-11-09 02:54:18,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4860d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:18, skipping insertion in model container [2024-11-09 02:54:18,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:54:18" (1/1) ... [2024-11-09 02:54:18,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:54:18,536 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_back_harness_negated.i[4493,4506] [2024-11-09 02:54:18,544 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_back_harness_negated.i[4553,4566] [2024-11-09 02:54:19,135 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,139 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,139 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,140 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,140 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,154 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,155 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,159 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,159 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,160 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,162 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,163 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,163 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,524 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:54:19,603 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:54:19,622 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_back_harness_negated.i[4493,4506] [2024-11-09 02:54:19,623 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_back_harness_negated.i[4553,4566] [2024-11-09 02:54:19,667 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,669 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,669 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,675 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,675 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,676 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,677 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,677 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,677 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,746 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:54:19,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7737-7748] [2024-11-09 02:54:19,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:54:19,963 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:54:19,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19 WrapperNode [2024-11-09 02:54:19,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:54:19,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:54:19,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:54:19,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:54:19,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,120 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-09 02:54:20,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:54:20,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:54:20,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:54:20,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:54:20,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,220 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 3, 6, 9, 55]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 0, 5, 10]. The 239 writes are split as follows [232, 0, 1, 2, 1, 3]. [2024-11-09 02:54:20,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:54:20,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:54:20,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:54:20,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:54:20,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (1/1) ... [2024-11-09 02:54:20,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:54:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:54:20,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:54:20,338 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 [2024-11-09 02:54:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:54:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 02:54:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 02:54:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:54:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:54:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 02:54:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 02:54:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 02:54:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:54:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:54:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:54:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:54:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:54:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 02:54:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 02:54:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 02:54:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:54:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:54:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:54:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:54:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 02:54:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 02:54:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-09 02:54:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-09 02:54:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:54:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 02:54:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 02:54:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:54:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 02:54:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:54:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:54:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:54:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:54:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 02:54:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 02:54:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 02:54:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:54:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:54:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:54:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:54:20,690 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:54:20,692 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:54:26,799 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-09 02:54:26,799 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:54:26,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:54:26,811 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 02:54:26,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:54:26 BoogieIcfgContainer [2024-11-09 02:54:26,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:54:26,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:54:26,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:54:26,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:54:26,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:54:18" (1/3) ... [2024-11-09 02:54:26,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1008d15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:54:26, skipping insertion in model container [2024-11-09 02:54:26,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:54:19" (2/3) ... [2024-11-09 02:54:26,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1008d15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:54:26, skipping insertion in model container [2024-11-09 02:54:26,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:54:26" (3/3) ... [2024-11-09 02:54:26,822 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness_negated.i [2024-11-09 02:54:26,844 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:54:26,847 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:54:26,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:54:26,954 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;@5a9897ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:54:26,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:54:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 02:54:26,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 02:54:26,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:54:26,977 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:54:26,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:54:26,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:54:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash -357183169, now seen corresponding path program 1 times [2024-11-09 02:54:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:54:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123617739] [2024-11-09 02:54:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:54:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:54:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:54:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:54:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:54:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:54:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:54:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:54:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 02:54:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 02:54:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:32,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 02:54:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 02:54:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:54:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 02:54:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 02:54:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 02:54:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 02:54:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 02:54:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 02:54:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 02:54:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 02:54:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 02:54:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 02:54:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:54:33,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:54:33,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123617739] [2024-11-09 02:54:33,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123617739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:54:33,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:54:33,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:54:33,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977840283] [2024-11-09 02:54:33,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:54:33,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:54:33,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:54:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:54:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:54:33,146 INFO L87 Difference]: Start difference. First operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 02:54:37,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:54:41,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:54:46,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:54:50,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:54:50,055 INFO L93 Difference]: Finished difference Result 386 states and 555 transitions. [2024-11-09 02:54:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:54:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2024-11-09 02:54:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:54:50,067 INFO L225 Difference]: With dead ends: 386 [2024-11-09 02:54:50,067 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 02:54:50,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:54:50,072 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 199 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 223 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 02:54:50,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 208 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 02:54:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 02:54:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2024-11-09 02:54:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.161904761904762) internal successors, (122), 106 states have internal predecessors, (122), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 02:54:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 230 transitions. [2024-11-09 02:54:50,117 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 230 transitions. Word has length 129 [2024-11-09 02:54:50,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:54:50,117 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 230 transitions. [2024-11-09 02:54:50,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 02:54:50,118 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 230 transitions. [2024-11-09 02:54:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 02:54:50,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:54:50,121 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:54:50,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:54:50,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:54:50,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:54:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash -298153149, now seen corresponding path program 1 times [2024-11-09 02:54:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:54:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952250308] [2024-11-09 02:54:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:54:50,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:54:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:55,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:54:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:54:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:54:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:55,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:54:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:55,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:54:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:54:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 02:54:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 02:54:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 02:54:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 02:54:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:54:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 02:54:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 02:54:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 02:54:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 02:54:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 02:54:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 02:54:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 02:54:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 02:54:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 02:54:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 02:54:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:54:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-09 02:54:56,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:54:56,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952250308] [2024-11-09 02:54:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952250308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:54:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923769851] [2024-11-09 02:54:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:54:56,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:54:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:54:56,923 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) [2024-11-09 02:54:56,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:55:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:02,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 02:55:02,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:55:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-09 02:55:03,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:55:03,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923769851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:55:03,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:55:03,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-09 02:55:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768366769] [2024-11-09 02:55:03,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:55:03,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:55:03,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:55:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:55:03,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:55:03,929 INFO L87 Difference]: Start difference. First operand 177 states and 230 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 02:55:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:55:07,594 INFO L93 Difference]: Finished difference Result 327 states and 431 transitions. [2024-11-09 02:55:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:55:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2024-11-09 02:55:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:55:07,598 INFO L225 Difference]: With dead ends: 327 [2024-11-09 02:55:07,598 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 02:55:07,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-09 02:55:07,605 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 242 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 02:55:07,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 02:55:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 02:55:07,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 02:55:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-09 02:55:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2024-11-09 02:55:07,650 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 236 transitions. Word has length 129 [2024-11-09 02:55:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:55:07,651 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 236 transitions. [2024-11-09 02:55:07,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 02:55:07,652 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 236 transitions. [2024-11-09 02:55:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 02:55:07,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:55:07,658 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:55:07,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 02:55:07,859 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 [2024-11-09 02:55:07,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:55:07,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:55:07,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1469361281, now seen corresponding path program 1 times [2024-11-09 02:55:07,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:55:07,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041627861] [2024-11-09 02:55:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:55:07,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:55:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:55:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:55:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:55:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:55:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:13,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:55:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:55:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-09 02:55:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 02:55:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 02:55:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 02:55:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 02:55:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 02:55:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:14,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 02:55:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 02:55:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 02:55:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 02:55:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 02:55:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-09 02:55:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-09 02:55:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-09 02:55:15,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:55:15,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041627861] [2024-11-09 02:55:15,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041627861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:55:15,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326614777] [2024-11-09 02:55:15,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:55:15,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:55:15,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:55:15,080 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) [2024-11-09 02:55:15,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 02:55:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:20,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 4516 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 02:55:20,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:55:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-09 02:55:22,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:55:22,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326614777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:55:22,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:55:22,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-09 02:55:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788232237] [2024-11-09 02:55:22,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:55:22,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:55:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:55:22,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:55:22,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-09 02:55:22,654 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-09 02:55:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:55:27,002 INFO L93 Difference]: Finished difference Result 289 states and 381 transitions. [2024-11-09 02:55:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:55:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 159 [2024-11-09 02:55:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:55:27,006 INFO L225 Difference]: With dead ends: 289 [2024-11-09 02:55:27,009 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 02:55:27,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-09 02:55:27,011 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 245 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 02:55:27,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 815 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 02:55:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 02:55:27,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 02:55:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-09 02:55:27,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2024-11-09 02:55:27,037 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 159 [2024-11-09 02:55:27,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:55:27,038 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2024-11-09 02:55:27,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-09 02:55:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2024-11-09 02:55:27,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-09 02:55:27,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:55:27,042 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:55:27,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 02:55:27,243 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 [2024-11-09 02:55:27,244 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:55:27,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:55:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1115773871, now seen corresponding path program 2 times [2024-11-09 02:55:27,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:55:27,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295758749] [2024-11-09 02:55:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:55:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:55:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:32,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:32,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:55:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:33,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:55:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:33,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:55:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:33,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:55:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:33,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:55:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:55:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-09 02:55:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 02:55:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 02:55:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 02:55:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 02:55:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 02:55:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 02:55:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:55:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 02:55:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 02:55:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-09 02:55:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:34,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-09 02:55:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:35,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-09 02:55:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:35,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-09 02:55:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-09 02:55:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:55:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295758749] [2024-11-09 02:55:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295758749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:55:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840151280] [2024-11-09 02:55:35,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 02:55:35,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:55:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:55:35,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:55:35,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process