./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_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_pop_front_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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:01:56,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:01:56,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:01:56,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:01:56,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:01:56,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:01:56,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:01:56,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:01:56,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:01:56,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:01:56,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:01:56,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:01:56,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:01:56,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:01:56,771 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:01:56,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:01:56,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:01:56,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:01:56,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:01:56,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:01:56,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:01:56,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:01:56,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:01:56,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:01:56,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:01:56,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:01:56,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:01:56,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:01:56,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:01:56,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:01:56,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:01:56,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:01:56,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:01:56,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:01:56,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:01:56,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:01:56,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:01:56,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:01:56,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:01:56,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2024-11-19 02:01:57,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:01:57,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:01:57,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:01:57,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:01:57,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:01:57,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-19 02:01:58,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:01:58,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:01:58,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-19 02:01:58,893 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad264e56/4875a687da9d4164925be46339fc1797/FLAGbf61f1959 [2024-11-19 02:01:58,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad264e56/4875a687da9d4164925be46339fc1797 [2024-11-19 02:01:58,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:01:58,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:01:58,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:01:58,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:01:58,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:01:58,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:58" (1/1) ... [2024-11-19 02:01:58,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9cc82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:58, skipping insertion in model container [2024-11-19 02:01:58,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:58" (1/1) ... [2024-11-19 02:01:59,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:01:59,302 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_pop_front_harness.i[4498,4511] [2024-11-19 02:01:59,313 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_pop_front_harness.i[4558,4571] [2024-11-19 02:01:59,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,853 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,853 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,854 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,855 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,863 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,864 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,865 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,865 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,867 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,867 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,868 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:01:59,868 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,150 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,155 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:02:00,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:02:00,233 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_pop_front_harness.i[4498,4511] [2024-11-19 02:02:00,234 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_pop_front_harness.i[4558,4571] [2024-11-19 02:02:00,272 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,273 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,273 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,273 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,274 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,279 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,351 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,355 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:00,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] [2024-11-19 02:02:00,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:02:00,547 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:02:00,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00 WrapperNode [2024-11-19 02:02:00,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:02:00,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:02:00,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:02:00,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:02:00,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,697 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 687 [2024-11-19 02:02:00,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:02:00,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:02:00,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:02:00,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:02:00,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,766 INFO L175 MemorySlicer]: Split 323 memory accesses to 6 slices as follows [238, 2, 6, 3, 11, 63]. 74 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 5, 10]. The 240 writes are split as follows [232, 0, 2, 1, 0, 5]. [2024-11-19 02:02:00,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:02:00,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:02:00,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:02:00,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:02:00,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (1/1) ... [2024-11-19 02:02:00,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:02:00,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:02:00,852 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 02:02:00,864 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 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-19 02:02:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:02:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:02:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:02:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:02:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:02:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:02:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:02:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:02:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:02:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:02:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 02:02:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:02:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:02:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:02:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:02:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:02:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:02:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:02:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:02:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:02:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:02:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:02:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:02:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:02:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:02:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:02:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-19 02:02:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-19 02:02:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2024-11-19 02:02:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:02:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:02:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:02:01,201 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:02:01,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:02:07,185 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-19 02:02:07,185 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:02:07,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:02:07,205 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 02:02:07,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:07 BoogieIcfgContainer [2024-11-19 02:02:07,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:02:07,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:02:07,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:02:07,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:02:07,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:58" (1/3) ... [2024-11-19 02:02:07,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2391d873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:07, skipping insertion in model container [2024-11-19 02:02:07,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:00" (2/3) ... [2024-11-19 02:02:07,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2391d873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:07, skipping insertion in model container [2024-11-19 02:02:07,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:07" (3/3) ... [2024-11-19 02:02:07,215 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2024-11-19 02:02:07,229 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:02:07,229 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:02:07,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:02:07,307 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;@37404217, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:02:07,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:02:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-19 02:02:07,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 02:02:07,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:02:07,324 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:07,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:02:07,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:02:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1369416434, now seen corresponding path program 1 times [2024-11-19 02:02:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:02:07,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595384060] [2024-11-19 02:02:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:07,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:02:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-19 02:02:13,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:02:13,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595384060] [2024-11-19 02:02:13,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595384060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:02:13,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482878391] [2024-11-19 02:02:13,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:13,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:02:13,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:02:13,046 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 02:02:13,048 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 02:02:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:18,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 4159 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:02:18,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:02:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-19 02:02:18,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:02:18,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482878391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:02:18,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:02:18,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:02:18,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798141672] [2024-11-19 02:02:18,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:02:18,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:02:18,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:02:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:02:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:02:18,807 INFO L87 Difference]: Start difference. First operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 02:02:18,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:02:18,856 INFO L93 Difference]: Finished difference Result 363 states and 519 transitions. [2024-11-19 02:02:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:02:18,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-19 02:02:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:02:18,866 INFO L225 Difference]: With dead ends: 363 [2024-11-19 02:02:18,866 INFO L226 Difference]: Without dead ends: 180 [2024-11-19 02:02:18,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:02:18,873 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:02:18,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:02:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-19 02:02:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-19 02:02:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 107 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 02:02:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2024-11-19 02:02:18,921 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 84 [2024-11-19 02:02:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:02:18,921 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2024-11-19 02:02:18,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 02:02:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2024-11-19 02:02:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 02:02:18,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:02:18,924 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:18,947 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 02:02:19,125 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 02:02:19,126 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:02:19,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:02:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash -293931922, now seen corresponding path program 1 times [2024-11-19 02:02:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:02:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186593562] [2024-11-19 02:02:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:02:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-19 02:02:25,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:02:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186593562] [2024-11-19 02:02:25,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186593562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:02:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351306880] [2024-11-19 02:02:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:25,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:02:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:02:25,389 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 02:02:25,391 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 02:02:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:31,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 4159 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:02:31,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:02:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 02:02:32,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:02:32,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351306880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:02:32,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:02:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:02:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475120868] [2024-11-19 02:02:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:02:32,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:02:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:02:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:02:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:02:32,026 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 02:02:34,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:02:34,357 INFO L93 Difference]: Finished difference Result 325 states and 446 transitions. [2024-11-19 02:02:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:02:34,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2024-11-19 02:02:34,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:02:34,362 INFO L225 Difference]: With dead ends: 325 [2024-11-19 02:02:34,362 INFO L226 Difference]: Without dead ends: 182 [2024-11-19 02:02:34,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:02:34,364 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 253 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 02:02:34,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 722 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 02:02:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-19 02:02:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-19 02:02:34,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2024-11-19 02:02:34,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 250 transitions. [2024-11-19 02:02:34,380 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 250 transitions. Word has length 84 [2024-11-19 02:02:34,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:02:34,380 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 250 transitions. [2024-11-19 02:02:34,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 02:02:34,380 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2024-11-19 02:02:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-19 02:02:34,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:02:34,382 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 02:02:34,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:02:34,583 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 02:02:34,583 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:02:34,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:02:34,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2116490439, now seen corresponding path program 1 times [2024-11-19 02:02:34,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:02:34,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226554648] [2024-11-19 02:02:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:02:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-19 02:02:41,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:02:41,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226554648] [2024-11-19 02:02:41,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226554648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:02:41,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914626475] [2024-11-19 02:02:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:02:41,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:02:41,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:02:41,348 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 02:02:41,354 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 02:02:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:02:46,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 4286 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:02:46,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:02:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 02:02:48,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:02:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914626475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:02:48,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:02:48,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-19 02:02:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160858375] [2024-11-19 02:02:48,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:02:48,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:02:48,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:02:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:02:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-19 02:02:48,228 INFO L87 Difference]: Start difference. First operand 182 states and 250 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 02:02:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:02:51,978 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2024-11-19 02:02:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:02:51,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2024-11-19 02:02:51,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:02:51,983 INFO L225 Difference]: With dead ends: 317 [2024-11-19 02:02:51,985 INFO L226 Difference]: Without dead ends: 182 [2024-11-19 02:02:51,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-19 02:02:51,987 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 273 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:02:52,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 975 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 02:02:52,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-19 02:02:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-19 02:02:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-19 02:02:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2024-11-19 02:02:52,050 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 99 [2024-11-19 02:02:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:02:52,050 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2024-11-19 02:02:52,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 02:02:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2024-11-19 02:02:52,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 02:02:52,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:02:52,060 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:02:52,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:02:52,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:02:52,261 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:02:52,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:02:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1678054398, now seen corresponding path program 2 times [2024-11-19 02:02:52,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:02:52,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380437155] [2024-11-19 02:02:52,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:02:52,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:02:56,803 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:02:56,804 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:02:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-19 02:02:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:02:59,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380437155] [2024-11-19 02:02:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380437155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:02:59,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441949241] [2024-11-19 02:02:59,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:02:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:02:59,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:02:59,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:02:59,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process