./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_push_back_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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:02:54,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:02:55,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:02:55,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:02:55,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:02:55,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:02:55,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:02:55,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:02:55,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:02:55,080 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:02:55,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:02:55,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:02:55,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:02:55,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:02:55,081 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:02:55,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:02:55,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:02:55,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:02:55,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:02:55,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:02:55,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:02:55,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:02:55,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:02:55,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:02:55,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:02:55,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:02:55,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:02:55,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:02:55,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:02:55,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:02:55,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:02:55,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:02:55,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:02:55,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:02:55,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:02:55,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:02:55,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:02:55,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:02:55,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:02:55,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2024-11-19 02:02:55,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:02:55,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:02:55,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:02:55,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:02:55,375 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:02:55,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-11-19 02:02:56,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:02:57,238 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:02:57,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-11-19 02:02:57,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2e65395/f0f9635027424d4eb9e89ef8774f6f71/FLAG5f89287d0 [2024-11-19 02:02:57,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2e65395/f0f9635027424d4eb9e89ef8774f6f71 [2024-11-19 02:02:57,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:02:57,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:02:57,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:02:57,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:02:57,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:02:57,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:57" (1/1) ... [2024-11-19 02:02:57,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524ed585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:57, skipping insertion in model container [2024-11-19 02:02:57,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:57" (1/1) ... [2024-11-19 02:02:57,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:02:57,865 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_push_back_harness.i[4498,4511] [2024-11-19 02:02:57,874 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_push_back_harness.i[4558,4571] [2024-11-19 02:02:58,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,794 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,795 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,795 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,797 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,812 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,813 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,815 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,815 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,818 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,818 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:58,819 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,275 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:02:59,375 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:02:59,389 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_push_back_harness.i[4498,4511] [2024-11-19 02:02:59,389 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_push_back_harness.i[4558,4571] [2024-11-19 02:02:59,441 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,441 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,449 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,449 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,450 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,450 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,451 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,452 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,452 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,537 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:02:59,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2024-11-19 02:02:59,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:02:59,809 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:02:59,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59 WrapperNode [2024-11-19 02:02:59,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:02:59,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:02:59,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:02:59,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:02:59,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:02:59,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,032 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 898 [2024-11-19 02:03:00,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:03:00,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:03:00,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:03:00,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:03:00,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,169 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [238, 2, 6, 8, 74, 6]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 10, 1]. The 241 writes are split as follows [232, 0, 2, 0, 6, 1]. [2024-11-19 02:03:00,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:03:00,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:03:00,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:03:00,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:03:00,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (1/1) ... [2024-11-19 02:03:00,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:03:00,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:00,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:03:00,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:03:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:03:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:03:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:03:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:03:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:03:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:03:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:03:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-19 02:03:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-19 02:03:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:03:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:03:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:03:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:03:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:03:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:03:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:03:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:03:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:03:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:03:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:03:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:03:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:03:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:03:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:03:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:03:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:03:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:03:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:03:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 02:03:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 02:03:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:03:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:03:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:03:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:03:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:03:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-19 02:03:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-19 02:03:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:03:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:03:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:03:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:03:00,372 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:03:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:03:00,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:03:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-19 02:03:00,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-19 02:03:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:03:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:03:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:03:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:03:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:03:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:03:00,759 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:03:00,761 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:03:07,314 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2024-11-19 02:03:07,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:03:07,346 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:03:07,346 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 02:03:07,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:07 BoogieIcfgContainer [2024-11-19 02:03:07,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:03:07,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:03:07,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:03:07,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:03:07,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:02:57" (1/3) ... [2024-11-19 02:03:07,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3220eafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:07, skipping insertion in model container [2024-11-19 02:03:07,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:59" (2/3) ... [2024-11-19 02:03:07,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3220eafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:07, skipping insertion in model container [2024-11-19 02:03:07,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:07" (3/3) ... [2024-11-19 02:03:07,361 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2024-11-19 02:03:07,380 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:03:07,382 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:03:07,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:03:07,488 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;@1db8d2e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:03:07,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:03:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 177 states have (on average 1.2203389830508475) internal successors, (216), 178 states have internal predecessors, (216), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-19 02:03:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 02:03:07,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:07,515 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:07,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:07,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash 923240142, now seen corresponding path program 1 times [2024-11-19 02:03:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:07,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155539398] [2024-11-19 02:03:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:07,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:13,532 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-19 02:03:13,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:13,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155539398] [2024-11-19 02:03:13,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155539398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:13,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475422369] [2024-11-19 02:03:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:13,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:13,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:13,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:03:13,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:03:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:19,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:03:19,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-19 02:03:19,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:19,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475422369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:19,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:19,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:03:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288519415] [2024-11-19 02:03:19,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:19,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:03:19,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:19,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:03:19,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:03:19,331 INFO L87 Difference]: Start difference. First operand has 304 states, 177 states have (on average 1.2203389830508475) internal successors, (216), 178 states have internal predecessors, (216), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:03:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:19,407 INFO L93 Difference]: Finished difference Result 601 states and 896 transitions. [2024-11-19 02:03:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:03:19,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135 [2024-11-19 02:03:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:19,420 INFO L225 Difference]: With dead ends: 601 [2024-11-19 02:03:19,421 INFO L226 Difference]: Without dead ends: 299 [2024-11-19 02:03:19,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 02:03:19,432 INFO L432 NwaCegarLoop]: 420 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, 420 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 02:03:19,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:03:19,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-19 02:03:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-19 02:03:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 173 states have (on average 1.2138728323699421) internal successors, (210), 174 states have internal predecessors, (210), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 02:03:19,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 415 transitions. [2024-11-19 02:03:19,533 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 415 transitions. Word has length 135 [2024-11-19 02:03:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:19,534 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 415 transitions. [2024-11-19 02:03:19,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:03:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 415 transitions. [2024-11-19 02:03:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 02:03:19,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:19,542 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:19,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:03:19,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 02:03:19,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:19,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1016118612, now seen corresponding path program 1 times [2024-11-19 02:03:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:19,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173454829] [2024-11-19 02:03:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:25,609 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-19 02:03:25,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:25,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173454829] [2024-11-19 02:03:25,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173454829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:25,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772563385] [2024-11-19 02:03:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:25,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:25,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:25,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:03:25,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:03:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:30,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:03:30,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-19 02:03:31,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772563385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:03:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616330885] [2024-11-19 02:03:31,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:31,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:03:31,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:31,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:03:31,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:03:31,709 INFO L87 Difference]: Start difference. First operand 299 states and 415 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-19 02:03:36,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:36,134 INFO L93 Difference]: Finished difference Result 574 states and 817 transitions. [2024-11-19 02:03:36,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:03:36,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 135 [2024-11-19 02:03:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:36,140 INFO L225 Difference]: With dead ends: 574 [2024-11-19 02:03:36,140 INFO L226 Difference]: Without dead ends: 301 [2024-11-19 02:03:36,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:03:36,142 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 453 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:03:36,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1148 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 02:03:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-19 02:03:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-19 02:03:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 174 states have (on average 1.2126436781609196) internal successors, (211), 176 states have internal predecessors, (211), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2024-11-19 02:03:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 435 transitions. [2024-11-19 02:03:36,176 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 435 transitions. Word has length 135 [2024-11-19 02:03:36,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:36,177 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 435 transitions. [2024-11-19 02:03:36,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-19 02:03:36,177 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 435 transitions. [2024-11-19 02:03:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-19 02:03:36,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:36,180 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:36,205 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 02:03:36,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 02:03:36,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:36,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:36,382 INFO L85 PathProgramCache]: Analyzing trace with hash 419431368, now seen corresponding path program 1 times [2024-11-19 02:03:36,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438162088] [2024-11-19 02:03:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-19 02:03:41,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438162088] [2024-11-19 02:03:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438162088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926017451] [2024-11-19 02:03:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:41,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:41,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:41,830 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 02:03:41,831 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 02:03:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:46,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 4529 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:03:46,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-19 02:03:47,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926017451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:47,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-19 02:03:47,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665906839] [2024-11-19 02:03:47,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:47,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:03:47,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:48,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:03:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 02:03:48,002 INFO L87 Difference]: Start difference. First operand 301 states and 435 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:03:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:53,118 INFO L93 Difference]: Finished difference Result 550 states and 795 transitions. [2024-11-19 02:03:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:03:53,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 165 [2024-11-19 02:03:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:53,123 INFO L225 Difference]: With dead ends: 550 [2024-11-19 02:03:53,123 INFO L226 Difference]: Without dead ends: 301 [2024-11-19 02:03:53,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:03:53,126 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 516 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-19 02:03:53,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1391 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-19 02:03:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-19 02:03:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-19 02:03:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 174 states have (on average 1.2126436781609196) internal successors, (211), 176 states have internal predecessors, (211), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2024-11-19 02:03:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 432 transitions. [2024-11-19 02:03:53,162 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 432 transitions. Word has length 165 [2024-11-19 02:03:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:53,163 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 432 transitions. [2024-11-19 02:03:53,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:03:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 432 transitions. [2024-11-19 02:03:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 02:03:53,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:53,166 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:53,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 02:03:53,367 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 02:03:53,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:53,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash 499468725, now seen corresponding path program 2 times [2024-11-19 02:03:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:53,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745963526] [2024-11-19 02:03:53,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:03:53,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:57,676 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:03:57,676 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:03:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-19 02:03:59,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745963526] [2024-11-19 02:03:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745963526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:59,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:03:59,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 02:03:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643536487] [2024-11-19 02:03:59,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:59,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:03:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:59,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:03:59,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:03:59,781 INFO L87 Difference]: Start difference. First operand 301 states and 432 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:04:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:02,748 INFO L93 Difference]: Finished difference Result 556 states and 800 transitions. [2024-11-19 02:04:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:04:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 180 [2024-11-19 02:04:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:02,752 INFO L225 Difference]: With dead ends: 556 [2024-11-19 02:04:02,752 INFO L226 Difference]: Without dead ends: 313 [2024-11-19 02:04:02,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 02:04:02,755 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 181 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:02,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 2350 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-19 02:04:02,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-19 02:04:02,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-19 02:04:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 180 states have (on average 1.211111111111111) internal successors, (218), 182 states have internal predecessors, (218), 108 states have call successors, (108), 23 states have call predecessors, (108), 24 states have return successors, (123), 107 states have call predecessors, (123), 107 states have call successors, (123) [2024-11-19 02:04:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 449 transitions. [2024-11-19 02:04:02,780 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 449 transitions. Word has length 180 [2024-11-19 02:04:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:02,781 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 449 transitions. [2024-11-19 02:04:02,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:04:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 449 transitions. [2024-11-19 02:04:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-19 02:04:02,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:02,784 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:02,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 02:04:02,785 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:02,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1908154911, now seen corresponding path program 1 times [2024-11-19 02:04:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:02,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088593543] [2024-11-19 02:04:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-19 02:04:09,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:04:09,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088593543] [2024-11-19 02:04:09,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088593543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:09,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:04:09,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:04:09,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272567070] [2024-11-19 02:04:09,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:09,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:04:09,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:04:09,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:04:09,378 INFO L87 Difference]: Start difference. First operand 313 states and 449 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:04:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:09,891 INFO L93 Difference]: Finished difference Result 595 states and 856 transitions. [2024-11-19 02:04:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:04:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2024-11-19 02:04:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:09,897 INFO L225 Difference]: With dead ends: 595 [2024-11-19 02:04:09,898 INFO L226 Difference]: Without dead ends: 331 [2024-11-19 02:04:09,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:04:09,900 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 6 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:09,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2455 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 02:04:09,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-19 02:04:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2024-11-19 02:04:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 189 states have (on average 1.2063492063492063) internal successors, (228), 191 states have internal predecessors, (228), 112 states have call successors, (112), 23 states have call predecessors, (112), 25 states have return successors, (129), 112 states have call predecessors, (129), 111 states have call successors, (129) [2024-11-19 02:04:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 469 transitions. [2024-11-19 02:04:09,937 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 469 transitions. Word has length 210 [2024-11-19 02:04:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:09,938 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 469 transitions. [2024-11-19 02:04:09,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-19 02:04:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 469 transitions. [2024-11-19 02:04:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-19 02:04:09,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:09,941 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:09,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 02:04:09,941 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:09,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash -877114013, now seen corresponding path program 1 times [2024-11-19 02:04:09,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:09,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342952949] [2024-11-19 02:04:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:09,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-19 02:04:16,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:04:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342952949] [2024-11-19 02:04:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342952949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:04:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 02:04:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797517149] [2024-11-19 02:04:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:16,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:04:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:16,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:04:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:04:16,911 INFO L87 Difference]: Start difference. First operand 327 states and 469 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:04:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:17,651 INFO L93 Difference]: Finished difference Result 600 states and 861 transitions. [2024-11-19 02:04:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:04:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 210 [2024-11-19 02:04:17,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:17,657 INFO L225 Difference]: With dead ends: 600 [2024-11-19 02:04:17,657 INFO L226 Difference]: Without dead ends: 339 [2024-11-19 02:04:17,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:04:17,660 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 7 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:17,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2847 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 02:04:17,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-19 02:04:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 333. [2024-11-19 02:04:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 192 states have (on average 1.203125) internal successors, (231), 194 states have internal predecessors, (231), 115 states have call successors, (115), 23 states have call predecessors, (115), 25 states have return successors, (132), 115 states have call predecessors, (132), 114 states have call successors, (132) [2024-11-19 02:04:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 478 transitions. [2024-11-19 02:04:17,727 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 478 transitions. Word has length 210 [2024-11-19 02:04:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:17,728 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 478 transitions. [2024-11-19 02:04:17,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-19 02:04:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 478 transitions. [2024-11-19 02:04:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-19 02:04:17,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:17,732 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:17,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 02:04:17,732 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:17,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:17,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1609081439, now seen corresponding path program 1 times [2024-11-19 02:04:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:17,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051704484] [2024-11-19 02:04:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms