./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_clear_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:41:57,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:41:57,694 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:41:57,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:41:57,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:41:57,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:41:57,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:41:57,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:41:57,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:41:57,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:41:57,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:41:57,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:41:57,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:41:57,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:41:57,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:41:57,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:41:57,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:41:57,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:41:57,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:41:57,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:41:57,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:41:57,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:41:57,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:41:57,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:41:57,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:41:57,727 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:41:57,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:41:57,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:41:57,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:41:57,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:41:57,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:41:57,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:41:57,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:41:57,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:41:57,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 [2024-11-10 10:41:57,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:41:57,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:41:57,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:41:57,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:41:57,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:41:57,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-10 10:41:59,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:41:59,744 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:41:59,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-10 10:41:59,778 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d11066/d2be845797674f8a8ac1fdaf282f2a44/FLAG50172993e [2024-11-10 10:41:59,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d11066/d2be845797674f8a8ac1fdaf282f2a44 [2024-11-10 10:41:59,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:41:59,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:41:59,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:41:59,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:41:59,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:41:59,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c567dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59, skipping insertion in model container [2024-11-10 10:41:59,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:42:00,193 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_clear_harness_negated.i[4494,4507] [2024-11-10 10:42:00,200 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_clear_harness_negated.i[4554,4567] [2024-11-10 10:42:00,688 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,689 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,690 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,690 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,691 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,699 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,700 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,701 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,701 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,702 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,703 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,703 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,704 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:00,997 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,007 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:42:01,089 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:42:01,103 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_clear_harness_negated.i[4494,4507] [2024-11-10 10:42:01,103 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_clear_harness_negated.i[4554,4567] [2024-11-10 10:42:01,141 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,142 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,142 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,142 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,143 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,149 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,149 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,150 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,150 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,151 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,152 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,152 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,152 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,237 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:42:01,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2024-11-10 10:42:01,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:42:01,510 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:42:01,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01 WrapperNode [2024-11-10 10:42:01,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:42:01,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:42:01,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:42:01,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:42:01,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,741 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-10 10:42:01,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:42:01,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:42:01,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:42:01,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:42:01,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,766 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,832 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 238, 34, 5, 9, 3]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 5, 5, 1]. The 237 writes are split as follows [0, 232, 4, 0, 0, 1]. [2024-11-10 10:42:01,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,866 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:42:01,900 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:42:01,900 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:42:01,900 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:42:01,902 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (1/1) ... [2024-11-10 10:42:01,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:42:01,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:42:01,930 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) [2024-11-10 10:42:01,936 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 [2024-11-10 10:42:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:42:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-10 10:42:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-10 10:42:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-10 10:42:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-10 10:42:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:42:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:42:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:42:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:42:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:42:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:42:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:42:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:42:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:42:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:42:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:42:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:42:01,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:42:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:42:01,973 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:42:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-10 10:42:01,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-10 10:42:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:42:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:42:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:42:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:42:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:42:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:42:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:42:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:42:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:42:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-10 10:42:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:42:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-10 10:42:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-10 10:42:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:42:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:42:02,229 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:42:02,231 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:42:02,273 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-10 10:42:02,300 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-10 10:42:02,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2024-11-10 10:42:02,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:42:07,555 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-10 10:42:07,555 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:42:07,573 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:42:07,573 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:42:07,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:07 BoogieIcfgContainer [2024-11-10 10:42:07,574 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:42:07,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:42:07,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:42:07,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:42:07,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:41:59" (1/3) ... [2024-11-10 10:42:07,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7365448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:07, skipping insertion in model container [2024-11-10 10:42:07,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:01" (2/3) ... [2024-11-10 10:42:07,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7365448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:07, skipping insertion in model container [2024-11-10 10:42:07,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:07" (3/3) ... [2024-11-10 10:42:07,582 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness_negated.i [2024-11-10 10:42:07,594 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:42:07,594 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:42:07,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:42:07,657 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;@68d05356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:42:07,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:42:07,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 64 states have (on average 1.1875) internal successors, (76), 65 states have internal predecessors, (76), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 10:42:07,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 10:42:07,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:07,671 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:07,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:07,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash 152351040, now seen corresponding path program 1 times [2024-11-10 10:42:07,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:07,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743469835] [2024-11-10 10:42:07,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:07,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 10:42:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 10:42:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:42:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-10 10:42:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:13,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743469835] [2024-11-10 10:42:13,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743469835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:13,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:42:13,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:42:13,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908086404] [2024-11-10 10:42:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:13,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:42:13,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:13,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:42:13,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:13,634 INFO L87 Difference]: Start difference. First operand has 102 states, 64 states have (on average 1.1875) internal successors, (76), 65 states have internal predecessors, (76), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:17,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:42:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:19,289 INFO L93 Difference]: Finished difference Result 206 states and 277 transitions. [2024-11-10 10:42:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:42:19,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-10 10:42:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:19,298 INFO L225 Difference]: With dead ends: 206 [2024-11-10 10:42:19,298 INFO L226 Difference]: Without dead ends: 106 [2024-11-10 10:42:19,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:19,303 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:19,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-10 10:42:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-10 10:42:19,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-10 10:42:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 10:42:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-10 10:42:19,379 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-10 10:42:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:19,382 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-10 10:42:19,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:19,384 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-10 10:42:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 10:42:19,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:19,390 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:19,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:42:19,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:19,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 352882526, now seen corresponding path program 1 times [2024-11-10 10:42:19,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:19,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867634315] [2024-11-10 10:42:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 10:42:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 10:42:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:42:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-10 10:42:25,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867634315] [2024-11-10 10:42:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867634315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:42:25,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557480246] [2024-11-10 10:42:25,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:25,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:42:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:42:25,449 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) [2024-11-10 10:42:25,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:42:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:30,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:42:30,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:42:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 10:42:31,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:42:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557480246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:42:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-10 10:42:31,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306506054] [2024-11-10 10:42:31,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:31,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:42:31,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:31,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:42:31,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 10:42:31,681 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:33,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:33,763 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-10 10:42:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:42:33,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-10 10:42:33,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:33,765 INFO L225 Difference]: With dead ends: 160 [2024-11-10 10:42:33,766 INFO L226 Difference]: Without dead ends: 98 [2024-11-10 10:42:33,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:42:33,767 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 123 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:33,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 305 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 10:42:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-10 10:42:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-10 10:42:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-10 10:42:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-10 10:42:33,788 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-10 10:42:33,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:33,788 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-10 10:42:33,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-10 10:42:33,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 10:42:33,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:33,793 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:33,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 10:42:33,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:42:33,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:33,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:33,995 INFO L85 PathProgramCache]: Analyzing trace with hash 985115396, now seen corresponding path program 1 times [2024-11-10 10:42:33,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:33,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469241567] [2024-11-10 10:42:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:33,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:39,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:39,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:39,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:39,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:39,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:42:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:42:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:42:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:42:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:42:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-10 10:42:40,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:40,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469241567] [2024-11-10 10:42:40,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469241567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:42:40,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336814433] [2024-11-10 10:42:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:40,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:42:40,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:42:40,769 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) [2024-11-10 10:42:40,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 10:42:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:45,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 10:42:45,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:42:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 10:42:47,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:42:47,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336814433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:47,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:42:47,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-10 10:42:47,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102057681] [2024-11-10 10:42:47,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:47,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:42:47,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:42:47,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-10 10:42:47,428 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-10 10:42:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:51,430 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-10 10:42:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:42:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2024-11-10 10:42:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:51,432 INFO L225 Difference]: With dead ends: 157 [2024-11-10 10:42:51,433 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 10:42:51,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-10 10:42:51,434 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 128 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:51,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 434 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-10 10:42:51,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 10:42:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-10 10:42:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 10:42:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-10 10:42:51,443 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-10 10:42:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:51,443 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-10 10:42:51,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-10 10:42:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-10 10:42:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 10:42:51,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:51,446 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:51,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 10:42:51,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 10:42:51,647 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:51,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1121842090, now seen corresponding path program 1 times [2024-11-10 10:42:51,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:51,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261863633] [2024-11-10 10:42:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:51,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:04,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:04,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:43:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:04,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:43:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:04,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:43:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:04,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:43:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:43:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:43:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 10:43:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 10:43:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-10 10:43:05,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:43:05,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261863633] [2024-11-10 10:43:05,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261863633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:43:05,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:43:05,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 10:43:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513377011] [2024-11-10 10:43:05,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:43:05,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 10:43:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:43:05,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 10:43:05,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-10 10:43:05,160 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-10 10:43:09,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:43:13,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:43:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:43:24,665 INFO L93 Difference]: Finished difference Result 172 states and 216 transitions. [2024-11-10 10:43:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 10:43:24,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) Word has length 105 [2024-11-10 10:43:24,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:43:24,668 INFO L225 Difference]: With dead ends: 172 [2024-11-10 10:43:24,668 INFO L226 Difference]: Without dead ends: 122 [2024-11-10 10:43:24,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-10 10:43:24,669 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 150 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 92 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-10 10:43:24,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 260 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2024-11-10 10:43:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-10 10:43:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 111. [2024-11-10 10:43:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 68 states have internal predecessors, (75), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-10 10:43:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 138 transitions. [2024-11-10 10:43:24,681 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 138 transitions. Word has length 105 [2024-11-10 10:43:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:43:24,682 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 138 transitions. [2024-11-10 10:43:24,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-10 10:43:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 138 transitions. [2024-11-10 10:43:24,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 10:43:24,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:43:24,683 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:43:24,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:43:24,684 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:43:24,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:43:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1095915863, now seen corresponding path program 1 times [2024-11-10 10:43:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:43:24,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411444111] [2024-11-10 10:43:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms