./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.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_swap_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:59:23,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:59:23,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:59:23,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:59:23,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:59:23,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:59:23,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:59:23,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:59:23,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:59:23,155 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:59:23,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:59:23,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:59:23,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:59:23,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:59:23,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:59:23,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:59:23,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:59:23,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:59:23,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:59:23,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:59:23,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:59:23,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:59:23,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:59:23,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:59:23,160 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:59:23,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:59:23,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:59:23,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:59:23,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:59:23,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:59:23,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:59:23,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:59:23,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:59:23,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:59:23,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:59:23,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:59:23,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:59:23,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:59:23,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:59:23,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2024-11-09 02:59:23,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:59:23,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:59:23,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:59:23,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:59:23,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:59:23,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2024-11-09 02:59:24,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:59:25,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:59:25,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2024-11-09 02:59:25,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea5cd08b/74229d861bf9420a88a6827ab1f7976b/FLAG59fcab51d [2024-11-09 02:59:25,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea5cd08b/74229d861bf9420a88a6827ab1f7976b [2024-11-09 02:59:25,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:59:25,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:59:25,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:59:25,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:59:25,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:59:25,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:59:25" (1/1) ... [2024-11-09 02:59:25,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718275b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:25, skipping insertion in model container [2024-11-09 02:59:25,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:59:25" (1/1) ... [2024-11-09 02:59:25,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:59:25,906 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_swap_harness_negated.i[4493,4506] [2024-11-09 02:59:25,914 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_swap_harness_negated.i[4553,4566] [2024-11-09 02:59:26,575 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,576 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,577 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,578 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,587 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,588 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,589 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,590 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:26,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,038 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,039 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,049 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:59:27,130 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:59:27,141 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_swap_harness_negated.i[4493,4506] [2024-11-09 02:59:27,142 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_swap_harness_negated.i[4553,4566] [2024-11-09 02:59:27,195 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,196 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,196 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,197 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,197 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,204 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,205 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,205 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,205 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,285 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,286 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,287 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,293 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:59:27,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2024-11-09 02:59:27,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:59:27,606 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:59:27,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27 WrapperNode [2024-11-09 02:59:27,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:59:27,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:59:27,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:59:27,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:59:27,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,744 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-11-09 02:59:27,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:59:27,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:59:27,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:59:27,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:59:27,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,887 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [2, 238, 3, 5, 39, 6, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 6, 1, 2, 5, 5, 5]. The 238 writes are split as follows [0, 232, 1, 1, 3, 1, 0]. [2024-11-09 02:59:27,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:59:27,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:59:27,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:59:27,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:59:27,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (1/1) ... [2024-11-09 02:59:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:59:28,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:59:28,021 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 02:59:28,023 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 02:59:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:59:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 02:59:28,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 02:59:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:59:28,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:59:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 02:59:28,065 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 02:59:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 02:59:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 02:59:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:59:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:59:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:59:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:59:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:59:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:59:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:59:28,069 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:59:28,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:59:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 02:59:28,070 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:59:28,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:59:28,070 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:59:28,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 02:59:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 02:59:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:59:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 02:59:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:59:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:59:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 02:59:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-09 02:59:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-09 02:59:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 02:59:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 02:59:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:59:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 02:59:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:59:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:59:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 02:59:28,350 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:59:28,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:59:34,636 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-09 02:59:34,636 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:59:34,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:59:34,654 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 02:59:34,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:59:34 BoogieIcfgContainer [2024-11-09 02:59:34,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:59:34,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:59:34,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:59:34,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:59:34,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:59:25" (1/3) ... [2024-11-09 02:59:34,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783733ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:59:34, skipping insertion in model container [2024-11-09 02:59:34,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:59:27" (2/3) ... [2024-11-09 02:59:34,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783733ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:59:34, skipping insertion in model container [2024-11-09 02:59:34,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:59:34" (3/3) ... [2024-11-09 02:59:34,664 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2024-11-09 02:59:34,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:59:34,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:59:34,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:59:34,761 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;@768076d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:59:34,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:59:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-09 02:59:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 02:59:34,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:59:34,780 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:59:34,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:59:34,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:59:34,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1076027669, now seen corresponding path program 1 times [2024-11-09 02:59:34,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:59:34,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510931656] [2024-11-09 02:59:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:59:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:59:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:40,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:59:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:40,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:59:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:59:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:59:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:59:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:59:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 02:59:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 02:59:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:59:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 02:59:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 02:59:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 02:59:41,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:59:41,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510931656] [2024-11-09 02:59:41,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510931656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:59:41,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:59:41,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:59:41,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769684508] [2024-11-09 02:59:41,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:59:41,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:59:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:59:41,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:59:41,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:59:41,456 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:59:45,547 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 02:59:49,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:59:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:59:55,961 INFO L93 Difference]: Finished difference Result 387 states and 592 transitions. [2024-11-09 02:59:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:59:55,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2024-11-09 02:59:55,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:59:55,973 INFO L225 Difference]: With dead ends: 387 [2024-11-09 02:59:55,973 INFO L226 Difference]: Without dead ends: 209 [2024-11-09 02:59:55,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:59:55,980 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 118 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 02:59:55,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 216 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 304 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 02:59:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-09 02:59:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 175. [2024-11-09 02:59:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 02:59:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2024-11-09 02:59:56,041 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2024-11-09 02:59:56,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:59:56,042 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2024-11-09 02:59:56,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:59:56,043 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2024-11-09 02:59:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 02:59:56,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:59:56,046 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:59:56,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:59:56,046 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:59:56,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:59:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1936245199, now seen corresponding path program 1 times [2024-11-09 02:59:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:59:56,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453248221] [2024-11-09 02:59:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:59:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:00:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:01,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:00:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:01,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:00:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:00:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 03:00:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:00:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 03:00:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 03:00:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 03:00:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 03:00:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 03:00:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 03:00:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 03:00:02,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:00:02,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453248221] [2024-11-09 03:00:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453248221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 03:00:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602125952] [2024-11-09 03:00:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:02,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 03:00:02,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:00:02,977 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 03:00:02,978 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 03:00:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:08,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 03:00:08,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 03:00:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 03:00:09,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 03:00:09,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602125952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:00:09,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 03:00:09,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-09 03:00:09,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573453511] [2024-11-09 03:00:09,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:00:09,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 03:00:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:00:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 03:00:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 03:00:09,748 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 03:00:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:00:13,375 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2024-11-09 03:00:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 03:00:13,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-09 03:00:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:00:13,378 INFO L225 Difference]: With dead ends: 315 [2024-11-09 03:00:13,378 INFO L226 Difference]: Without dead ends: 177 [2024-11-09 03:00:13,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-09 03:00:13,380 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 238 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 03:00:13,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 666 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 03:00:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-09 03:00:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-09 03:00:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-09 03:00:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2024-11-09 03:00:13,416 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2024-11-09 03:00:13,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:00:13,416 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2024-11-09 03:00:13,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 03:00:13,417 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2024-11-09 03:00:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 03:00:13,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:00:13,428 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 03:00:13,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 03:00:13,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 03:00:13,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:00:13,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:00:13,630 INFO L85 PathProgramCache]: Analyzing trace with hash 929841439, now seen corresponding path program 1 times [2024-11-09 03:00:13,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:00:13,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953259503] [2024-11-09 03:00:13,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:00:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:19,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:00:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:19,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:00:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:19,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:00:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 03:00:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:19,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:00:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 03:00:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:00:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:00:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 03:00:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 03:00:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:20,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 03:00:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:21,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 03:00:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:21,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 03:00:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 03:00:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:00:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953259503] [2024-11-09 03:00:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953259503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 03:00:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981159016] [2024-11-09 03:00:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 03:00:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:00:21,092 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) [2024-11-09 03:00:21,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 03:00:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:00:26,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 03:00:26,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 03:00:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 03:00:28,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 03:00:28,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981159016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:00:28,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 03:00:28,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-09 03:00:28,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568965540] [2024-11-09 03:00:28,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:00:28,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 03:00:28,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:00:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 03:00:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-09 03:00:28,703 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 03:00:34,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:00:34,684 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2024-11-09 03:00:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 03:00:34,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-09 03:00:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:00:34,687 INFO L225 Difference]: With dead ends: 326 [2024-11-09 03:00:34,687 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 03:00:34,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-09 03:00:34,689 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 258 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-09 03:00:34,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 993 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-09 03:00:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 03:00:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-09 03:00:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-09 03:00:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2024-11-09 03:00:34,705 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2024-11-09 03:00:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:00:34,706 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2024-11-09 03:00:34,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 03:00:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2024-11-09 03:00:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 03:00:34,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:00:34,709 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 03:00:34,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 03:00:34,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 03:00:34,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:00:34,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:00:34,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2047267727, now seen corresponding path program 1 times [2024-11-09 03:00:34,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:00:34,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259130724] [2024-11-09 03:00:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:34,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:00:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 03:00:41,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788467257] [2024-11-09 03:00:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:00:41,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 03:00:41,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:00:41,937 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) [2024-11-09 03:00:41,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process