./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_set_at_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 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:03:01,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:03:01,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:03:01,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:03:01,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:03:01,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:03:01,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:03:01,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:03:01,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:03:01,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:03:01,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:03:01,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:03:01,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:03:01,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:03:01,771 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:03:01,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:03:01,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:03:01,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:03:01,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:03:01,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:03:01,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:03:01,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:03:01,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:03:01,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:03:01,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:03:01,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:03:01,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:03:01,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:03:01,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:03:01,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:03:01,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:03:01,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:03:01,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:03:01,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:03:01,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:03:01,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:03:01,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:03:01,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:03:01,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:03:01,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a [2024-11-19 02:03:02,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:03:02,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:03:02,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:03:02,079 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:03:02,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:03:02,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2024-11-19 02:03:03,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:03:03,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:03:03,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2024-11-19 02:03:03,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ddf9d145/2979586ed1384174a7635e805da9a5f9/FLAG28783edf1 [2024-11-19 02:03:04,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ddf9d145/2979586ed1384174a7635e805da9a5f9 [2024-11-19 02:03:04,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:03:04,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:03:04,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:03:04,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:03:04,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:03:04,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:04" (1/1) ... [2024-11-19 02:03:04,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb00659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:04, skipping insertion in model container [2024-11-19 02:03:04,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:04" (1/1) ... [2024-11-19 02:03:04,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:03:04,404 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_set_at_harness.i[4495,4508] [2024-11-19 02:03:04,414 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_set_at_harness.i[4555,4568] [2024-11-19 02:03:05,278 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,279 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,279 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,304 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,305 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,307 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,309 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,311 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,749 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,755 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,806 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,807 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,807 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:03:05,845 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:03:05,857 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_set_at_harness.i[4495,4508] [2024-11-19 02:03:05,857 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_set_at_harness.i[4555,4568] [2024-11-19 02:03:05,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,927 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,928 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,928 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,929 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,944 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,944 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,945 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,947 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,952 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:05,952 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,033 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,037 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2024-11-19 02:03:06,066 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,067 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,071 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:06,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:03:06,296 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:03:06,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06 WrapperNode [2024-11-19 02:03:06,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:03:06,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:03:06,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:03:06,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:03:06,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,493 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 50, calls inlined = 10, statements flattened = 850 [2024-11-19 02:03:06,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:03:06,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:03:06,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:03:06,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:03:06,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,618 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [72, 2, 238, 8, 6, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [10, 2, 6, 5, 1, 0]. The 241 writes are split as follows [6, 0, 232, 0, 1, 2]. [2024-11-19 02:03:06,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:03:06,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:03:06,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:03:06,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:03:06,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (1/1) ... [2024-11-19 02:03:06,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:03:06,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:06,741 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) [2024-11-19 02:03:06,744 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 [2024-11-19 02:03:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:03:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:03:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:03:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:03:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:03:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:03:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:03:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-19 02:03:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-19 02:03:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:03:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:03:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:03:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:03:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:03:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:03:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:03:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:03:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:03:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:03:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:03:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:03:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:03:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:03:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:03:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:03:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:03:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:03:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:03:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:03:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:03:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:03:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:03:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 02:03:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 02:03:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:03:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:03:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:03:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:03:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:03:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:03:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-19 02:03:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-19 02:03:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:03:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:03:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:03:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-19 02:03:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-19 02:03:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:03:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:03:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:03:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:03:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:03:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:03:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:03:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:03:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:03:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:03:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:03:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-19 02:03:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:03:06,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2024-11-19 02:03:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:03:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:03:07,194 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:03:07,197 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:03:13,483 INFO L? ?]: Removed 167 outVars from TransFormulas that were not future-live. [2024-11-19 02:03:13,484 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:03:13,508 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:03:13,508 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 02:03:13,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:13 BoogieIcfgContainer [2024-11-19 02:03:13,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:03:13,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:03:13,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:03:13,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:03:13,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:04" (1/3) ... [2024-11-19 02:03:13,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a69cc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:13, skipping insertion in model container [2024-11-19 02:03:13,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:06" (2/3) ... [2024-11-19 02:03:13,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a69cc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:13, skipping insertion in model container [2024-11-19 02:03:13,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:13" (3/3) ... [2024-11-19 02:03:13,519 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2024-11-19 02:03:13,536 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:03:13,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:03:13,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:03:13,626 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;@276cc32d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:03:13,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:03:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 167 states have (on average 1.215568862275449) internal successors, (203), 169 states have internal predecessors, (203), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 02:03:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 02:03:13,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:13,654 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:13,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:13,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:13,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1931342552, now seen corresponding path program 1 times [2024-11-19 02:03:13,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:13,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138944994] [2024-11-19 02:03:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:13,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-19 02:03:21,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:21,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138944994] [2024-11-19 02:03:21,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138944994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346742311] [2024-11-19 02:03:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:21,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:21,011 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) [2024-11-19 02:03:21,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:03:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:26,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:03:26,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-19 02:03:27,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:27,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346742311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:27,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:27,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:03:27,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265138982] [2024-11-19 02:03:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:27,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:03:27,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:03:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:03:27,611 INFO L87 Difference]: Start difference. First operand has 288 states, 167 states have (on average 1.215568862275449) internal successors, (203), 169 states have internal predecessors, (203), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-19 02:03:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:30,708 INFO L93 Difference]: Finished difference Result 571 states and 858 transitions. [2024-11-19 02:03:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:03:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 156 [2024-11-19 02:03:30,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:30,722 INFO L225 Difference]: With dead ends: 571 [2024-11-19 02:03:30,723 INFO L226 Difference]: Without dead ends: 285 [2024-11-19 02:03:30,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:03:30,733 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 408 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-19 02:03:30,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1260 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-19 02:03:30,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-19 02:03:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-19 02:03:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 167 states have internal predecessors, (198), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (111), 95 states have call predecessors, (111), 95 states have call successors, (111) [2024-11-19 02:03:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 405 transitions. [2024-11-19 02:03:30,833 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 405 transitions. Word has length 156 [2024-11-19 02:03:30,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:30,834 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 405 transitions. [2024-11-19 02:03:30,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-19 02:03:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 405 transitions. [2024-11-19 02:03:30,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-19 02:03:30,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:30,840 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:30,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:03:31,041 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 [2024-11-19 02:03:31,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:31,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2015842466, now seen corresponding path program 1 times [2024-11-19 02:03:31,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:31,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889603566] [2024-11-19 02:03:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:31,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-19 02:03:37,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:37,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889603566] [2024-11-19 02:03:37,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889603566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:37,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503951954] [2024-11-19 02:03:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:37,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:37,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:37,922 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) [2024-11-19 02:03:37,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:03:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:43,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:03:43,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-19 02:03:44,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:44,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503951954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:44,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:44,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-19 02:03:44,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636792381] [2024-11-19 02:03:44,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:44,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:03:44,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:44,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:03:44,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:03:44,848 INFO L87 Difference]: Start difference. First operand 285 states and 405 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-19 02:03:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:50,516 INFO L93 Difference]: Finished difference Result 514 states and 730 transitions. [2024-11-19 02:03:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:03:50,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2024-11-19 02:03:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:50,522 INFO L225 Difference]: With dead ends: 514 [2024-11-19 02:03:50,522 INFO L226 Difference]: Without dead ends: 285 [2024-11-19 02:03:50,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-19 02:03:50,525 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 464 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:03:50,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1622 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-19 02:03:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-19 02:03:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-19 02:03:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 167 states have internal predecessors, (198), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (107), 95 states have call predecessors, (107), 95 states have call successors, (107) [2024-11-19 02:03:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 401 transitions. [2024-11-19 02:03:50,560 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 401 transitions. Word has length 186 [2024-11-19 02:03:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:50,561 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 401 transitions. [2024-11-19 02:03:50,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-19 02:03:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 401 transitions. [2024-11-19 02:03:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-19 02:03:50,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:50,565 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:50,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 02:03:50,766 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 [2024-11-19 02:03:50,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:50,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash 320849307, now seen corresponding path program 2 times [2024-11-19 02:03:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:50,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140966561] [2024-11-19 02:03:50,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:03:50,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:54,856 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 02:03:54,856 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:03:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-19 02:03:55,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:55,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140966561] [2024-11-19 02:03:55,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140966561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:55,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:03:55,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:03:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869846903] [2024-11-19 02:03:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:55,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:03:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:55,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:03:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:03:55,893 INFO L87 Difference]: Start difference. First operand 285 states and 401 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 02:03:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:56,140 INFO L93 Difference]: Finished difference Result 496 states and 688 transitions. [2024-11-19 02:03:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:03:56,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2024-11-19 02:03:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:56,145 INFO L225 Difference]: With dead ends: 496 [2024-11-19 02:03:56,145 INFO L226 Difference]: Without dead ends: 290 [2024-11-19 02:03:56,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:03:56,147 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:03:56,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:03:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-19 02:03:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-19 02:03:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 171 states have internal predecessors, (202), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (109), 96 states have call predecessors, (109), 95 states have call successors, (109) [2024-11-19 02:03:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 407 transitions. [2024-11-19 02:03:56,173 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 407 transitions. Word has length 201 [2024-11-19 02:03:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:56,174 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 407 transitions. [2024-11-19 02:03:56,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 02:03:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 407 transitions. [2024-11-19 02:03:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-19 02:03:56,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:56,178 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:56,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 02:03:56,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:56,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 778665137, now seen corresponding path program 1 times [2024-11-19 02:03:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833866868] [2024-11-19 02:03:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:56,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-19 02:04:02,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:04:02,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833866868] [2024-11-19 02:04:02,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833866868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:04:02,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473339] [2024-11-19 02:04:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:02,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:04:02,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:04:02,601 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) [2024-11-19 02:04:02,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:04:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:07,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 02:04:07,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:04:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-11-19 02:04:09,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:04:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:09,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:04:09,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-19 02:04:09,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865298879] [2024-11-19 02:04:09,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:09,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:04:09,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:04:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:04:09,972 INFO L87 Difference]: Start difference. First operand 290 states and 407 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-19 02:04:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:16,868 INFO L93 Difference]: Finished difference Result 518 states and 724 transitions. [2024-11-19 02:04:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:04:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 207 [2024-11-19 02:04:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:16,872 INFO L225 Difference]: With dead ends: 518 [2024-11-19 02:04:16,873 INFO L226 Difference]: Without dead ends: 290 [2024-11-19 02:04:16,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-19 02:04:16,875 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 500 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:16,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1848 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-19 02:04:16,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-19 02:04:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-19 02:04:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 171 states have internal predecessors, (202), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (103), 96 states have call predecessors, (103), 95 states have call successors, (103) [2024-11-19 02:04:16,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 401 transitions. [2024-11-19 02:04:16,908 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 401 transitions. Word has length 207 [2024-11-19 02:04:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:16,910 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 401 transitions. [2024-11-19 02:04:16,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-19 02:04:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 401 transitions. [2024-11-19 02:04:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-19 02:04:16,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:16,914 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:16,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 02:04:17,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:04:17,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:17,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:17,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1917411246, now seen corresponding path program 2 times [2024-11-19 02:04:17,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:17,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362615364] [2024-11-19 02:04:17,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:04:17,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:21,832 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:04:21,833 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:04:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-19 02:04:24,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:04:24,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362615364] [2024-11-19 02:04:24,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362615364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:24,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:04:24,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:04:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333499398] [2024-11-19 02:04:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:24,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:04:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:04:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:04:24,462 INFO L87 Difference]: Start difference. First operand 290 states and 401 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-19 02:04:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:25,047 INFO L93 Difference]: Finished difference Result 571 states and 795 transitions. [2024-11-19 02:04:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:04:25,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 222 [2024-11-19 02:04:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:25,054 INFO L225 Difference]: With dead ends: 571 [2024-11-19 02:04:25,054 INFO L226 Difference]: Without dead ends: 332 [2024-11-19 02:04:25,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:04:25,056 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 23 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:25,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2430 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 02:04:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-19 02:04:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 306. [2024-11-19 02:04:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 178 states have (on average 1.196629213483146) internal successors, (213), 181 states have internal predecessors, (213), 101 states have call successors, (101), 23 states have call predecessors, (101), 26 states have return successors, (110), 102 states have call predecessors, (110), 100 states have call successors, (110) [2024-11-19 02:04:25,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 424 transitions. [2024-11-19 02:04:25,079 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 424 transitions. Word has length 222 [2024-11-19 02:04:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:25,080 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 424 transitions. [2024-11-19 02:04:25,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-19 02:04:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 424 transitions. [2024-11-19 02:04:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-19 02:04:25,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:25,083 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:25,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 02:04:25,084 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:25,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1754274448, now seen corresponding path program 1 times [2024-11-19 02:04:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:25,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997996900] [2024-11-19 02:04:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms