./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_init_dynamic_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 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:57:22,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:57:22,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:57:22,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:57:22,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:57:22,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:57:22,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:57:22,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:57:22,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:57:22,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:57:22,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:57:22,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:57:22,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:57:22,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:57:22,376 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:57:22,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:57:22,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:57:22,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:57:22,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:57:22,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:57:22,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:57:22,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:57:22,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:57:22,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:57:22,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:57:22,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:57:22,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:57:22,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:57:22,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:57:22,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:22,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:57:22,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:57:22,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:57:22,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:57:22,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:57:22,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:57:22,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:57:22,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:57:22,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:57:22,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad [2024-11-09 02:57:22,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:57:22,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:57:22,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:57:22,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:57:22,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:57:22,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2024-11-09 02:57:24,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:57:24,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:57:24,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2024-11-09 02:57:24,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdca67e4/bae2d1a06ad048e290a9ed2f04a16d45/FLAG55e4f6883 [2024-11-09 02:57:24,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdca67e4/bae2d1a06ad048e290a9ed2f04a16d45 [2024-11-09 02:57:24,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:57:24,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:57:24,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:24,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:57:24,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:57:24,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:24" (1/1) ... [2024-11-09 02:57:24,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e622f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:24, skipping insertion in model container [2024-11-09 02:57:24,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:24" (1/1) ... [2024-11-09 02:57:25,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:57:25,292 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_init_dynamic_harness.i[4501,4514] [2024-11-09 02:57:25,303 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_init_dynamic_harness.i[4561,4574] [2024-11-09 02:57:26,105 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,106 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,106 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,107 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,110 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,126 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,128 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,129 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,130 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,131 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,569 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:26,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:57:26,681 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_init_dynamic_harness.i[4501,4514] [2024-11-09 02:57:26,682 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_init_dynamic_harness.i[4561,4574] [2024-11-09 02:57:26,788 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,789 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,789 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,789 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,791 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,800 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,803 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,806 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,807 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,807 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,862 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:26,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-09 02:57:26,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:27,107 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:57:27,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27 WrapperNode [2024-11-09 02:57:27,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:27,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:27,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:57:27,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:57:27,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,268 INFO L138 Inliner]: procedures = 679, calls = 1558, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 597 [2024-11-09 02:57:27,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:27,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:57:27,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:57:27,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:57:27,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,383 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 5, 26, 6]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 5, 5, 1]. The 238 writes are split as follows [0, 232, 0, 5, 1]. [2024-11-09 02:57:27,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:57:27,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:57:27,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:57:27,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:57:27,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (1/1) ... [2024-11-09 02:57:27,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:27,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:57:27,513 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) [2024-11-09 02:57:27,516 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 [2024-11-09 02:57:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-09 02:57:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-09 02:57:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:57:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:57:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:57:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 02:57:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 02:57:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-09 02:57:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-09 02:57:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 02:57:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 02:57:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 02:57:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 02:57:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 02:57:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:57:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:57:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:57:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:57:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:57:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:57:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:57:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:57:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:57:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:57:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:57:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:57:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:57:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:57:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:57:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:57:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:57:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:57:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:57:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:57:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-09 02:57:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-09 02:57:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:57:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 02:57:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 02:57:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-09 02:57:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:57:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-09 02:57:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:57:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 02:57:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:57:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:57:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:57:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:57:27,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:57:27,897 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:57:34,203 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-11-09 02:57:34,203 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:57:34,216 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:57:34,216 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 02:57:34,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:34 BoogieIcfgContainer [2024-11-09 02:57:34,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:57:34,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:57:34,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:57:34,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:57:34,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:57:24" (1/3) ... [2024-11-09 02:57:34,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2daf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:34, skipping insertion in model container [2024-11-09 02:57:34,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:27" (2/3) ... [2024-11-09 02:57:34,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2daf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:34, skipping insertion in model container [2024-11-09 02:57:34,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:34" (3/3) ... [2024-11-09 02:57:34,225 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2024-11-09 02:57:34,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:57:34,240 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:57:34,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:57:34,321 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;@2d807097, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:57:34,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:57:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 02:57:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 02:57:34,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:57:34,342 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 02:57:34,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:57:34,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:57:34,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1052512289, now seen corresponding path program 1 times [2024-11-09 02:57:34,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:57:34,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373962296] [2024-11-09 02:57:34,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:34,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:57:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:57:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:57:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:57:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:57:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:57:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 02:57:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:57:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 02:57:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 02:57:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:40,649 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:57:40,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:57:40,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373962296] [2024-11-09 02:57:40,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373962296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:57:40,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:57:40,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:57:40,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131044096] [2024-11-09 02:57:40,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:57:40,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:57:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:57:40,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:57:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:57:40,682 INFO L87 Difference]: Start difference. First operand has 144 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 02:57:44,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:57:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:57:47,201 INFO L93 Difference]: Finished difference Result 281 states and 381 transitions. [2024-11-09 02:57:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:57:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2024-11-09 02:57:47,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:57:47,213 INFO L225 Difference]: With dead ends: 281 [2024-11-09 02:57:47,213 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 02:57:47,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:57:47,219 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-09 02:57:47,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 159 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-09 02:57:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 02:57:47,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2024-11-09 02:57:47,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.188235294117647) internal successors, (101), 87 states have internal predecessors, (101), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 02:57:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 171 transitions. [2024-11-09 02:57:47,276 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 171 transitions. Word has length 64 [2024-11-09 02:57:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:57:47,277 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 171 transitions. [2024-11-09 02:57:47,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 02:57:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 171 transitions. [2024-11-09 02:57:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 02:57:47,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:57:47,281 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 02:57:47,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:57:47,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:57:47,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:57:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1013251729, now seen corresponding path program 1 times [2024-11-09 02:57:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:57:47,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179935288] [2024-11-09 02:57:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:47,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:57:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:57:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:57:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:57:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:57:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:57:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 02:57:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:57:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:54,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 02:57:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:55,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 02:57:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:55,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 02:57:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:55,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:57:55,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:57:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179935288] [2024-11-09 02:57:55,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179935288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:57:55,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:57:55,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:57:55,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725778520] [2024-11-09 02:57:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:57:55,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:57:55,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:57:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:57:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:57:55,732 INFO L87 Difference]: Start difference. First operand 137 states and 171 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:57:59,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:58:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:09,592 INFO L93 Difference]: Finished difference Result 153 states and 189 transitions. [2024-11-09 02:58:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:58:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2024-11-09 02:58:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:09,596 INFO L225 Difference]: With dead ends: 153 [2024-11-09 02:58:09,598 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 02:58:09,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 02:58:09,600 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:09,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 270 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 549 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2024-11-09 02:58:09,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 02:58:09,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2024-11-09 02:58:09,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 91 states have internal predecessors, (104), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 02:58:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2024-11-09 02:58:09,623 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 70 [2024-11-09 02:58:09,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:09,624 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2024-11-09 02:58:09,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:58:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2024-11-09 02:58:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 02:58:09,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:09,626 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 02:58:09,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:58:09,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:09,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1011404687, now seen corresponding path program 1 times [2024-11-09 02:58:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:09,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208600502] [2024-11-09 02:58:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:58:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:58:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:58:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 02:58:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:58:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 02:58:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:15,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 02:58:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:16,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-09 02:58:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:16,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:58:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:16,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208600502] [2024-11-09 02:58:16,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208600502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:58:16,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:58:16,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:58:16,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920596830] [2024-11-09 02:58:16,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:58:16,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:58:16,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:58:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:58:16,637 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:58:20,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:58:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:28,753 INFO L93 Difference]: Finished difference Result 270 states and 332 transitions. [2024-11-09 02:58:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:58:28,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2024-11-09 02:58:28,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:28,756 INFO L225 Difference]: With dead ends: 270 [2024-11-09 02:58:28,756 INFO L226 Difference]: Without dead ends: 148 [2024-11-09 02:58:28,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:58:28,758 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 129 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 92 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:28,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 231 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 02:58:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-09 02:58:28,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2024-11-09 02:58:28,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 92 states have internal predecessors, (105), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 02:58:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 177 transitions. [2024-11-09 02:58:28,785 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 177 transitions. Word has length 70 [2024-11-09 02:58:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:28,785 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 177 transitions. [2024-11-09 02:58:28,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:58:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 177 transitions. [2024-11-09 02:58:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 02:58:28,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:28,790 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 02:58:28,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:58:28,790 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:28,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1728971905, now seen corresponding path program 1 times [2024-11-09 02:58:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:28,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164087631] [2024-11-09 02:58:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:58:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:58:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:58:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-09 02:58:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:58:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 02:58:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 02:58:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:36,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:58:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:36,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:58:36,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:36,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164087631] [2024-11-09 02:58:36,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164087631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:58:36,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573034534] [2024-11-09 02:58:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:36,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:58:36,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:58:36,257 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) [2024-11-09 02:58:36,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:58:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:41,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 02:58:41,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:58:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:58:41,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:58:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 02:58:43,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573034534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:58:43,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:58:43,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2024-11-09 02:58:43,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087887495] [2024-11-09 02:58:43,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:58:43,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:58:43,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:43,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:58:43,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:58:43,582 INFO L87 Difference]: Start difference. First operand 143 states and 177 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 02:58:47,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []