./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_swap_contents_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 dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:02:41,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:02:41,294 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:02:41,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:02:41,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:02:41,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:02:41,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:02:41,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:02:41,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:02:41,313 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:02:41,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:02:41,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:02:41,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:02:41,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:02:41,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:02:41,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:02:41,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:02:41,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:02:41,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:02:41,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:02:41,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:02:41,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:02:41,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:02:41,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:02:41,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:02:41,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:02:41,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:02:41,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:02:41,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:02:41,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:02:41,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:02:41,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:02:41,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:02:41,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d [2024-11-22 14:02:41,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:02:41,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:02:41,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:02:41,558 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:02:41,559 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:02:41,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2024-11-22 14:02:42,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:02:43,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:02:43,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2024-11-22 14:02:43,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1db3eac/e365e2813892438a8f93bf82a36e8d58/FLAG7d3cfc998 [2024-11-22 14:02:43,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1db3eac/e365e2813892438a8f93bf82a36e8d58 [2024-11-22 14:02:43,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:02:43,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:02:43,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:02:43,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:02:43,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:02:43,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:43" (1/1) ... [2024-11-22 14:02:43,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f6997b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:43, skipping insertion in model container [2024-11-22 14:02:43,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:43" (1/1) ... [2024-11-22 14:02:43,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:02:43,518 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_swap_contents_harness.i[4502,4515] [2024-11-22 14:02:43,530 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_swap_contents_harness.i[4562,4575] [2024-11-22 14:02:44,094 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,094 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,095 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,095 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,096 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,108 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,109 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,110 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,116 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,116 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,398 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,403 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:02:44,465 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:02:44,476 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_swap_contents_harness.i[4502,4515] [2024-11-22 14:02:44,477 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_swap_contents_harness.i[4562,4575] [2024-11-22 14:02:44,536 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,537 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,537 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,538 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,538 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,546 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,546 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,547 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,548 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,548 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,548 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,625 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,629 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:44,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-11-22 14:02:44,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:02:44,784 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:02:44,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44 WrapperNode [2024-11-22 14:02:44,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:02:44,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:02:44,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:02:44,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:02:44,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:44,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:44,930 INFO L138 Inliner]: procedures = 679, calls = 1720, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 701 [2024-11-22 14:02:44,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:02:44,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:02:44,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:02:44,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:02:44,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:44,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:44,946 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,007 INFO L175 MemorySlicer]: Split 358 memory accesses to 7 slices as follows [238, 2, 92, 3, 10, 7, 6]. 66 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [6, 2, 20, 1, 5, 5, 0]. The 248 writes are split as follows [232, 0, 13, 1, 0, 0, 2]. [2024-11-22 14:02:45,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:02:45,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:02:45,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:02:45,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:02:45,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (1/1) ... [2024-11-22 14:02:45,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:02:45,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:02:45,096 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) [2024-11-22 14:02:45,102 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 [2024-11-22 14:02:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:02:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:02:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:02:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:02:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:02:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:02:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:02:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 14:02:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:02:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:02:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-22 14:02:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:02:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:02:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:02:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:02:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 14:02:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:02:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:02:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:02:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:02:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-22 14:02:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-22 14:02:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:02:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:02:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:02:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:02:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:02:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:02:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:02:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-22 14:02:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:02:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:02:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:02:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:02:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:02:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 14:02:45,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:02:45,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:02:51,602 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-22 14:02:51,603 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:02:51,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:02:51,614 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 14:02:51,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:51 BoogieIcfgContainer [2024-11-22 14:02:51,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:02:51,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:02:51,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:02:51,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:02:51,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:43" (1/3) ... [2024-11-22 14:02:51,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3cb54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:51, skipping insertion in model container [2024-11-22 14:02:51,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:44" (2/3) ... [2024-11-22 14:02:51,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3cb54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:51, skipping insertion in model container [2024-11-22 14:02:51,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:51" (3/3) ... [2024-11-22 14:02:51,620 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2024-11-22 14:02:51,632 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:02:51,633 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:02:51,687 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:02:51,692 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;@3599e4c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:02:51,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:02:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 14:02:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 14:02:51,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:02:51,711 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 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] [2024-11-22 14:02:51,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:02:51,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:02:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -959965628, now seen corresponding path program 1 times [2024-11-22 14:02:51,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:02:51,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755359950] [2024-11-22 14:02:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:02:51,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:02:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:02:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-22 14:02:56,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:02:56,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755359950] [2024-11-22 14:02:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755359950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:02:56,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034942840] [2024-11-22 14:02:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:02:56,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:02:56,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:02:56,785 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) [2024-11-22 14:02:56,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:03:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:01,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 4627 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 14:03:01,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-22 14:03:01,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034942840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:01,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:01,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-11-22 14:03:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806859510] [2024-11-22 14:03:01,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:01,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:03:01,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:01,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:03:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:03:01,904 INFO L87 Difference]: Start difference. First operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-22 14:03:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:01,988 INFO L93 Difference]: Finished difference Result 317 states and 454 transitions. [2024-11-22 14:03:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:03:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 174 [2024-11-22 14:03:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:02,000 INFO L225 Difference]: With dead ends: 317 [2024-11-22 14:03:02,000 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 14:03:02,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:03:02,007 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:02,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:03:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 14:03:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-22 14:03:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 89 states have (on average 1.146067415730337) internal successors, (102), 90 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-22 14:03:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2024-11-22 14:03:02,046 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 174 [2024-11-22 14:03:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:02,047 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2024-11-22 14:03:02,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-22 14:03:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2024-11-22 14:03:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 14:03:02,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:02,051 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 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] [2024-11-22 14:03:02,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 14:03:02,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 14:03:02,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:02,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1876441160, now seen corresponding path program 1 times [2024-11-22 14:03:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:02,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987106842] [2024-11-22 14:03:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:02,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-22 14:03:07,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:07,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987106842] [2024-11-22 14:03:07,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987106842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:07,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690251783] [2024-11-22 14:03:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:07,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:07,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:07,369 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) [2024-11-22 14:03:07,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:03:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:12,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 4633 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 14:03:12,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2024-11-22 14:03:13,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:13,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690251783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:13,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:13,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 14:03:13,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481230886] [2024-11-22 14:03:13,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:13,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:03:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:03:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:03:13,103 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:17,150 INFO L93 Difference]: Finished difference Result 307 states and 408 transitions. [2024-11-22 14:03:17,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:03:17,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 174 [2024-11-22 14:03:17,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:17,158 INFO L225 Difference]: With dead ends: 307 [2024-11-22 14:03:17,158 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 14:03:17,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 14:03:17,160 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 198 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:17,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 575 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-22 14:03:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 14:03:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-22 14:03:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2024-11-22 14:03:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2024-11-22 14:03:17,174 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 174 [2024-11-22 14:03:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:17,175 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2024-11-22 14:03:17,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2024-11-22 14:03:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-22 14:03:17,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:17,177 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-22 14:03:17,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 14:03:17,378 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,SelfDestructingSolverStorable1 [2024-11-22 14:03:17,378 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:17,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1033136662, now seen corresponding path program 1 times [2024-11-22 14:03:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:17,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959456526] [2024-11-22 14:03:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-22 14:03:22,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959456526] [2024-11-22 14:03:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959456526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222708102] [2024-11-22 14:03:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:22,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:22,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:22,071 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) [2024-11-22 14:03:22,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:03:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:26,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 4760 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 14:03:26,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:27,634 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-22 14:03:27,634 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222708102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:27,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:27,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 14:03:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050290248] [2024-11-22 14:03:27,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:27,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:03:27,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:03:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:03:27,638 INFO L87 Difference]: Start difference. First operand 158 states and 212 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:30,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:30,560 INFO L93 Difference]: Finished difference Result 271 states and 365 transitions. [2024-11-22 14:03:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:03:30,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 189 [2024-11-22 14:03:30,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:30,562 INFO L225 Difference]: With dead ends: 271 [2024-11-22 14:03:30,563 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 14:03:30,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 14:03:30,564 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 196 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:30,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 575 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 14:03:30,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 14:03:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-22 14:03:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2024-11-22 14:03:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 210 transitions. [2024-11-22 14:03:30,576 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 210 transitions. Word has length 189 [2024-11-22 14:03:30,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:30,576 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 210 transitions. [2024-11-22 14:03:30,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 210 transitions. [2024-11-22 14:03:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 14:03:30,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:30,580 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 14:03:30,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 14:03:30,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:30,782 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:30,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:30,782 INFO L85 PathProgramCache]: Analyzing trace with hash -765566814, now seen corresponding path program 2 times [2024-11-22 14:03:30,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:30,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955081780] [2024-11-22 14:03:30,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 14:03:30,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:34,964 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 14:03:34,964 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 14:03:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-22 14:03:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:36,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955081780] [2024-11-22 14:03:36,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955081780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:36,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:03:36,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:03:36,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267150780] [2024-11-22 14:03:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:36,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:03:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:36,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:03:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:03:36,147 INFO L87 Difference]: Start difference. First operand 158 states and 210 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:37,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:37,975 INFO L93 Difference]: Finished difference Result 240 states and 316 transitions. [2024-11-22 14:03:37,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:03:37,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 204 [2024-11-22 14:03:37,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:37,979 INFO L225 Difference]: With dead ends: 240 [2024-11-22 14:03:37,981 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 14:03:37,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:03:37,982 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 23 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:37,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 849 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 14:03:37,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 14:03:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-22 14:03:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2024-11-22 14:03:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2024-11-22 14:03:37,999 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 204 [2024-11-22 14:03:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:38,001 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2024-11-22 14:03:38,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 14:03:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2024-11-22 14:03:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-22 14:03:38,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:38,003 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 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] [2024-11-22 14:03:38,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 14:03:38,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:38,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1919405256, now seen corresponding path program 3 times [2024-11-22 14:03:38,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:38,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144379128] [2024-11-22 14:03:38,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 14:03:38,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:42,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 14:03:42,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 14:03:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-22 14:03:44,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:44,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144379128] [2024-11-22 14:03:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144379128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:44,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6085039] [2024-11-22 14:03:44,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 14:03:44,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:44,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:44,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:03:44,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process