./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_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 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:21:01,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:21:01,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:21:01,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:21:01,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:21:01,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:21:01,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:21:01,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:21:01,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:21:01,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:21:01,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:21:01,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:21:01,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:21:01,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:21:01,656 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:21:01,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:21:01,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:21:01,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:21:01,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:21:01,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:21:01,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:21:01,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:21:01,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:21:01,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:21:01,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:21:01,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:21:01,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:21:01,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:21:01,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:21:01,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:21:01,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:21:01,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:21:01,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:21:01,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:21:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:21:01,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:21:01,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:21:01,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:21:01,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:21:01,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d929c4e9006747fc293836abf67036a0361374cf7a5424bbaba854150966272 [2024-11-19 02:21:01,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:21:01,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:21:01,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:21:01,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:21:01,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:21:01,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2024-11-19 02:21:03,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:21:03,895 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:21:03,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2024-11-19 02:21:03,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6cf8450/620de27f62d0412caf6cb753f4b3d6f5/FLAG1b1f053ce [2024-11-19 02:21:03,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6cf8450/620de27f62d0412caf6cb753f4b3d6f5 [2024-11-19 02:21:03,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:21:03,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:21:03,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:21:03,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:21:03,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:21:03,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:03" (1/1) ... [2024-11-19 02:21:03,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c4a4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:03, skipping insertion in model container [2024-11-19 02:21:03,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:03" (1/1) ... [2024-11-19 02:21:04,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:21:04,404 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_priority_queue_capacity_harness.i[4501,4514] [2024-11-19 02:21:04,416 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_priority_queue_capacity_harness.i[4561,4574] [2024-11-19 02:21:05,375 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,376 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,377 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,378 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,379 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,394 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,395 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:05,396 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,092 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,093 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:21:06,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:21:06,260 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_priority_queue_capacity_harness.i[4501,4514] [2024-11-19 02:21:06,261 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_priority_queue_capacity_harness.i[4561,4574] [2024-11-19 02:21:06,339 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,340 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,340 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,340 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,341 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,352 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,353 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,354 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,354 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,537 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,538 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:06,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-19 02:21:06,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:21:06,833 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:21:06,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06 WrapperNode [2024-11-19 02:21:06,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:21:06,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:21:06,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:21:06,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:21:06,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:06,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:06,980 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 698 [2024-11-19 02:21:06,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:21:06,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:21:06,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:21:06,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:21:06,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:06,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,094 INFO L175 MemorySlicer]: Split 338 memory accesses to 6 slices as follows [238, 2, 3, 6, 82, 7]. 70 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 0, 10, 5]. The 252 writes are split as follows [232, 0, 1, 2, 17, 0]. [2024-11-19 02:21:07,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:21:07,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:21:07,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:21:07,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:21:07,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (1/1) ... [2024-11-19 02:21:07,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:21:07,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:07,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:21:07,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:21:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-19 02:21:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-19 02:21:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:21:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:21:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:21:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:21:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:21:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:21:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:21:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:21:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:21:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:21:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:21:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:21:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:21:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:21:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:21:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-19 02:21:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:21:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:21:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:21:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:21:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:21:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:21:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 02:21:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 02:21:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:21:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:21:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:21:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:21:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:21:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:21:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:21:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-19 02:21:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:21:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:21:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:21:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:21:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:21:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:21:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-19 02:21:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:21:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:21:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:21:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:21:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:21:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:21:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:21:07,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:21:07,640 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:21:13,883 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-19 02:21:13,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:21:13,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:21:13,905 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 02:21:13,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:13 BoogieIcfgContainer [2024-11-19 02:21:13,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:21:13,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:21:13,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:21:13,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:21:13,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:21:03" (1/3) ... [2024-11-19 02:21:13,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ecb632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:13, skipping insertion in model container [2024-11-19 02:21:13,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:06" (2/3) ... [2024-11-19 02:21:13,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ecb632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:13, skipping insertion in model container [2024-11-19 02:21:13,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:13" (3/3) ... [2024-11-19 02:21:13,917 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2024-11-19 02:21:13,934 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:21:13,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:21:14,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:21:14,026 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;@20e9ad52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:21:14,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:21:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 121 states have internal predecessors, (145), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 02:21:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 02:21:14,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:14,057 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:14,058 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:14,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:14,067 INFO L85 PathProgramCache]: Analyzing trace with hash -996301551, now seen corresponding path program 1 times [2024-11-19 02:21:14,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:14,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152538441] [2024-11-19 02:21:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:14,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-19 02:21:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152538441] [2024-11-19 02:21:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152538441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:20,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215968695] [2024-11-19 02:21:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:20,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:20,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:20,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:21:20,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:21:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:27,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 4508 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:21:27,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:21:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-19 02:21:27,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:21:27,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215968695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:27,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:21:27,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:21:27,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78212250] [2024-11-19 02:21:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:27,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:21:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:21:27,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:21:27,175 INFO L87 Difference]: Start difference. First operand has 186 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 121 states have internal predecessors, (145), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:21:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:27,231 INFO L93 Difference]: Finished difference Result 349 states and 475 transitions. [2024-11-19 02:21:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:21:27,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 140 [2024-11-19 02:21:27,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:27,244 INFO L225 Difference]: With dead ends: 349 [2024-11-19 02:21:27,244 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 02:21:27,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:21:27,258 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:27,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:21:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 02:21:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-19 02:21:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 116 states have (on average 1.1896551724137931) internal successors, (138), 117 states have internal predecessors, (138), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 02:21:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2024-11-19 02:21:27,320 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 140 [2024-11-19 02:21:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:27,324 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2024-11-19 02:21:27,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-19 02:21:27,325 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2024-11-19 02:21:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 02:21:27,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:27,339 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:27,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 02:21:27,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 02:21:27,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:27,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 357028367, now seen corresponding path program 1 times [2024-11-19 02:21:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:27,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750559423] [2024-11-19 02:21:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:27,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-19 02:21:34,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:34,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750559423] [2024-11-19 02:21:34,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750559423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:34,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:21:34,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:21:34,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126842699] [2024-11-19 02:21:34,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:34,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:21:34,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:21:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:21:34,125 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-19 02:21:34,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:34,740 INFO L93 Difference]: Finished difference Result 308 states and 393 transitions. [2024-11-19 02:21:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:21:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2024-11-19 02:21:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:34,744 INFO L225 Difference]: With dead ends: 308 [2024-11-19 02:21:34,745 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 02:21:34,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:21:34,747 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 12 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:34,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 819 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 02:21:34,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 02:21:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-19 02:21:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 117 states have internal predecessors, (137), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 02:21:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 230 transitions. [2024-11-19 02:21:34,764 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 230 transitions. Word has length 140 [2024-11-19 02:21:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:34,765 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 230 transitions. [2024-11-19 02:21:34,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-19 02:21:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 230 transitions. [2024-11-19 02:21:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 02:21:34,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:34,768 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:34,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 02:21:34,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:34,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1719192545, now seen corresponding path program 1 times [2024-11-19 02:21:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:34,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549092676] [2024-11-19 02:21:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:34,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-19 02:21:41,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549092676] [2024-11-19 02:21:41,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549092676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16862821] [2024-11-19 02:21:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:41,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:41,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:41,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:21:41,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:21:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:47,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 4558 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:21:47,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:21:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-19 02:21:48,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:21:48,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16862821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:48,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:21:48,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-19 02:21:48,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432045283] [2024-11-19 02:21:48,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:48,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:21:48,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:48,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:21:48,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:21:48,845 INFO L87 Difference]: Start difference. First operand 181 states and 230 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 02:21:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:53,167 INFO L93 Difference]: Finished difference Result 327 states and 422 transitions. [2024-11-19 02:21:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:21:53,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 148 [2024-11-19 02:21:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:53,173 INFO L225 Difference]: With dead ends: 327 [2024-11-19 02:21:53,173 INFO L226 Difference]: Without dead ends: 183 [2024-11-19 02:21:53,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-19 02:21:53,175 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 265 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:53,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1037 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 02:21:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-19 02:21:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-19 02:21:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.1794871794871795) internal successors, (138), 119 states have internal predecessors, (138), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-11-19 02:21:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 234 transitions. [2024-11-19 02:21:53,212 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 234 transitions. Word has length 148 [2024-11-19 02:21:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:53,213 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 234 transitions. [2024-11-19 02:21:53,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 02:21:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 234 transitions. [2024-11-19 02:21:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 02:21:53,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:53,216 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:53,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 02:21:53,417 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 [2024-11-19 02:21:53,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:53,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:53,418 INFO L85 PathProgramCache]: Analyzing trace with hash 268202549, now seen corresponding path program 1 times [2024-11-19 02:21:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:53,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488074526] [2024-11-19 02:21:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:53,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-19 02:21:59,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488074526] [2024-11-19 02:21:59,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488074526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:59,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:21:59,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 02:21:59,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335329750] [2024-11-19 02:21:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:59,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:21:59,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:21:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:21:59,727 INFO L87 Difference]: Start difference. First operand 183 states and 234 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-19 02:22:00,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:22:00,926 INFO L93 Difference]: Finished difference Result 313 states and 400 transitions. [2024-11-19 02:22:00,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:22:00,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 163 [2024-11-19 02:22:00,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:22:00,930 INFO L225 Difference]: With dead ends: 313 [2024-11-19 02:22:00,930 INFO L226 Difference]: Without dead ends: 183 [2024-11-19 02:22:00,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:22:00,932 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 29 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:22:00,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 980 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 02:22:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-19 02:22:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-19 02:22:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-11-19 02:22:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 233 transitions. [2024-11-19 02:22:00,960 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 233 transitions. Word has length 163 [2024-11-19 02:22:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:22:00,966 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 233 transitions. [2024-11-19 02:22:00,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-19 02:22:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 233 transitions. [2024-11-19 02:22:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 02:22:00,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:00,971 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:22:00,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 02:22:00,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:00,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:00,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1410135988, now seen corresponding path program 1 times [2024-11-19 02:22:00,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:00,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290736896] [2024-11-19 02:22:00,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:00,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-19 02:22:07,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290736896] [2024-11-19 02:22:07,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290736896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719722266] [2024-11-19 02:22:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:07,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:07,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:07,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:22:07,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:22:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:13,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 4757 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 02:22:13,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:22:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-19 02:22:15,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:22:15,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719722266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:22:15,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:22:15,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-19 02:22:15,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347076555] [2024-11-19 02:22:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:22:15,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:22:15,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:22:15,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:22:15,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:22:15,357 INFO L87 Difference]: Start difference. First operand 183 states and 233 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-19 02:22:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:22:20,722 INFO L93 Difference]: Finished difference Result 326 states and 417 transitions. [2024-11-19 02:22:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 02:22:20,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 179 [2024-11-19 02:22:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:22:20,725 INFO L225 Difference]: With dead ends: 326 [2024-11-19 02:22:20,725 INFO L226 Difference]: Without dead ends: 183 [2024-11-19 02:22:20,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-19 02:22:20,728 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 280 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:22:20,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1149 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 02:22:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-19 02:22:20,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-19 02:22:20,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2024-11-19 02:22:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 232 transitions. [2024-11-19 02:22:20,749 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 232 transitions. Word has length 179 [2024-11-19 02:22:20,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:22:20,749 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 232 transitions. [2024-11-19 02:22:20,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-19 02:22:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 232 transitions. [2024-11-19 02:22:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-19 02:22:20,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:20,752 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:22:20,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:22:20,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:20,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:20,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1014613762, now seen corresponding path program 2 times [2024-11-19 02:22:20,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:20,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792642559] [2024-11-19 02:22:20,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:22:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:25,948 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:22:25,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat