./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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 d7eaf0344f6f57c66c46804220c62b0485b08b4ef0e684c487eaec2203e797bb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:27:25,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:27:25,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:27:25,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:27:25,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:27:25,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:27:25,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:27:25,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:27:25,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:27:25,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:27:25,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:27:25,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:27:25,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:27:25,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:27:25,604 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:27:25,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:27:25,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:27:25,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:27:25,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:27:25,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:27:25,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:27:25,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:27:25,606 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:27:25,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:27:25,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:27:25,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:27:25,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:27:25,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:27:25,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:27:25,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:25,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:27:25,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:27:25,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:27:25,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:27:25,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:27:25,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:27:25,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:27:25,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:27:25,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:27:25,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7eaf0344f6f57c66c46804220c62b0485b08b4ef0e684c487eaec2203e797bb [2024-10-13 07:27:25,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:27:25,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:27:25,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:27:25,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:27:25,893 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:27:25,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2024-10-13 07:27:27,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:27:27,853 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:27:27,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2024-10-13 07:27:27,898 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f7e6061/95fccef473754614a804c32ca6ae6dd4/FLAG4a9bcbdb3 [2024-10-13 07:27:27,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f7e6061/95fccef473754614a804c32ca6ae6dd4 [2024-10-13 07:27:27,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:27:27,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:27:27,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:27,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:27:27,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:27:27,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:27" (1/1) ... [2024-10-13 07:27:27,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab024dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:27, skipping insertion in model container [2024-10-13 07:27:27,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:27" (1/1) ... [2024-10-13 07:27:28,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:27:28,343 WARN L248 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_init_static_harness.i[4504,4517] [2024-10-13 07:27:28,351 WARN L248 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_init_static_harness.i[4564,4577] [2024-10-13 07:27:29,212 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,213 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,213 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,214 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,214 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,235 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,238 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,240 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,241 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,700 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,701 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:29,801 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:27:29,817 WARN L248 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_init_static_harness.i[4504,4517] [2024-10-13 07:27:29,817 WARN L248 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_init_static_harness.i[4564,4577] [2024-10-13 07:27:29,878 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,882 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,885 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,885 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,886 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,891 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,894 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,895 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,896 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,965 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,965 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:29,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-13 07:27:30,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:30,222 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:27:30,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30 WrapperNode [2024-10-13 07:27:30,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:30,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:30,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:27:30,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:27:30,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,401 INFO L138 Inliner]: procedures = 678, calls = 1519, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 680 [2024-10-13 07:27:30,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:30,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:27:30,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:27:30,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:27:30,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,521 INFO L175 MemorySlicer]: Split 292 memory accesses to 5 slices as follows [2, 236, 47, 2, 5]. 81 percent of accesses are in the largest equivalence class. The 256 initializations are split as follows [2, 236, 13, 0, 5]. The 7 writes are split as follows [0, 0, 7, 0, 0]. [2024-10-13 07:27:30,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:27:30,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:27:30,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:27:30,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:27:30,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (1/1) ... [2024-10-13 07:27:30,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:30,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:30,632 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) [2024-10-13 07:27:30,639 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 [2024-10-13 07:27:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-13 07:27:30,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-13 07:27:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:27:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:27:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:27:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:27:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:27:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:27:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:27:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:27:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:27:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:27:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:27:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:27:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:27:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:27:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:27:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:27:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:27:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:27:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:27:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:27:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:27:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:27:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:27:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:27:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:27:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:27:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:27:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-13 07:27:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-13 07:27:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:27:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:27:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:27:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:27:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:27:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:27:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:27:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:27:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-10-13 07:27:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:27:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:27:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:27:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-13 07:27:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-13 07:27:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-13 07:27:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-13 07:27:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:27:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:27:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:27:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:27:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:27:30,977 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:27:30,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:27:31,738 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-10-13 07:27:31,739 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:27:31,861 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:27:31,862 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 07:27:31,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:31 BoogieIcfgContainer [2024-10-13 07:27:31,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:27:31,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:27:31,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:27:31,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:27:31,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:27:27" (1/3) ... [2024-10-13 07:27:31,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2873f795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:31, skipping insertion in model container [2024-10-13 07:27:31,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:30" (2/3) ... [2024-10-13 07:27:31,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2873f795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:31, skipping insertion in model container [2024-10-13 07:27:31,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:31" (3/3) ... [2024-10-13 07:27:31,873 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2024-10-13 07:27:31,892 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:27:31,892 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:27:31,964 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:27:31,973 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;@354cc048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:27:31,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:27:31,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 90 states have internal predecessors, (113), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-13 07:27:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-13 07:27:31,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:31,996 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 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] [2024-10-13 07:27:31,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:32,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -384985302, now seen corresponding path program 1 times [2024-10-13 07:27:32,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:32,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370763037] [2024-10-13 07:27:32,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:32,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:27:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:27:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-13 07:27:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 07:27:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:27:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:27:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:27:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-10-13 07:27:33,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:33,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370763037] [2024-10-13 07:27:33,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370763037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:33,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:33,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:27:33,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193240422] [2024-10-13 07:27:33,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:33,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:27:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:33,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:27:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:27:33,156 INFO L87 Difference]: Start difference. First operand has 152 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 90 states have internal predecessors, (113), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 07:27:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:33,986 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2024-10-13 07:27:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:27:33,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 140 [2024-10-13 07:27:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:34,001 INFO L225 Difference]: With dead ends: 309 [2024-10-13 07:27:34,002 INFO L226 Difference]: Without dead ends: 176 [2024-10-13 07:27:34,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:27:34,014 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 62 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:34,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 07:27:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-13 07:27:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 149. [2024-10-13 07:27:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 88 states have internal predecessors, (104), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-13 07:27:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 199 transitions. [2024-10-13 07:27:34,084 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 199 transitions. Word has length 140 [2024-10-13 07:27:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:34,086 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 199 transitions. [2024-10-13 07:27:34,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 07:27:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 199 transitions. [2024-10-13 07:27:34,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 07:27:34,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:34,089 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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] [2024-10-13 07:27:34,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:27:34,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:34,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2013316054, now seen corresponding path program 1 times [2024-10-13 07:27:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:34,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628836169] [2024-10-13 07:27:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 07:27:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:27:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:27:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:27:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:27:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:27:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2024-10-13 07:27:35,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:35,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628836169] [2024-10-13 07:27:35,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628836169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:35,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:35,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:27:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496772671] [2024-10-13 07:27:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:35,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:27:35,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:35,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:27:35,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:27:35,441 INFO L87 Difference]: Start difference. First operand 149 states and 199 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-13 07:27:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:36,796 INFO L93 Difference]: Finished difference Result 292 states and 397 transitions. [2024-10-13 07:27:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 07:27:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 155 [2024-10-13 07:27:36,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:36,801 INFO L225 Difference]: With dead ends: 292 [2024-10-13 07:27:36,801 INFO L226 Difference]: Without dead ends: 206 [2024-10-13 07:27:36,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:36,803 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 190 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:36,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 765 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 07:27:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-13 07:27:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 151. [2024-10-13 07:27:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 90 states have internal predecessors, (105), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2024-10-13 07:27:36,834 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 155 [2024-10-13 07:27:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:36,835 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2024-10-13 07:27:36,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-13 07:27:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2024-10-13 07:27:36,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-13 07:27:36,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:36,838 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:36,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:27:36,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:36,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1076362070, now seen corresponding path program 1 times [2024-10-13 07:27:36,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:36,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678721778] [2024-10-13 07:27:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:36,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 07:27:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:27:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:27:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:27:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:27:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:27:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:37,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:37,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678721778] [2024-10-13 07:27:37,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678721778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:37,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:37,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:27:37,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379592610] [2024-10-13 07:27:37,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:37,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:37,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:37,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:37,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:37,856 INFO L87 Difference]: Start difference. First operand 151 states and 202 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:39,085 INFO L93 Difference]: Finished difference Result 311 states and 423 transitions. [2024-10-13 07:27:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:27:39,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 168 [2024-10-13 07:27:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:39,089 INFO L225 Difference]: With dead ends: 311 [2024-10-13 07:27:39,089 INFO L226 Difference]: Without dead ends: 206 [2024-10-13 07:27:39,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:39,091 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 110 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:39,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 874 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:27:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-13 07:27:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 151. [2024-10-13 07:27:39,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 90 states have internal predecessors, (104), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 201 transitions. [2024-10-13 07:27:39,111 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 201 transitions. Word has length 168 [2024-10-13 07:27:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:39,111 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 201 transitions. [2024-10-13 07:27:39,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 201 transitions. [2024-10-13 07:27:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 07:27:39,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:39,117 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:39,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 07:27:39,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:39,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:39,118 INFO L85 PathProgramCache]: Analyzing trace with hash 795437778, now seen corresponding path program 1 times [2024-10-13 07:27:39,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:39,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010366905] [2024-10-13 07:27:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 07:27:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:27:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:27:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:27:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:40,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:40,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010366905] [2024-10-13 07:27:40,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010366905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:40,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:40,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:27:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51308500] [2024-10-13 07:27:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:40,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:27:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:27:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:27:40,448 INFO L87 Difference]: Start difference. First operand 151 states and 201 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:41,814 INFO L93 Difference]: Finished difference Result 307 states and 418 transitions. [2024-10-13 07:27:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 07:27:41,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 170 [2024-10-13 07:27:41,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:41,817 INFO L225 Difference]: With dead ends: 307 [2024-10-13 07:27:41,817 INFO L226 Difference]: Without dead ends: 201 [2024-10-13 07:27:41,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:27:41,818 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 138 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:41,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 994 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 07:27:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-13 07:27:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 152. [2024-10-13 07:27:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 91 states have internal predecessors, (105), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2024-10-13 07:27:41,834 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 170 [2024-10-13 07:27:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:41,835 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2024-10-13 07:27:41,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2024-10-13 07:27:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 07:27:41,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:41,838 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:41,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 07:27:41,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:41,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:41,838 INFO L85 PathProgramCache]: Analyzing trace with hash -884208099, now seen corresponding path program 1 times [2024-10-13 07:27:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267987991] [2024-10-13 07:27:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:41,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 07:27:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-13 07:27:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:27:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-13 07:27:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-13 07:27:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-13 07:27:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:43,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:43,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267987991] [2024-10-13 07:27:43,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267987991] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:43,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634027502] [2024-10-13 07:27:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:43,275 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) [2024-10-13 07:27:43,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:27:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-13 07:27:43,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:44,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 07:27:44,281 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| Int)) (and (<= |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| |c_aws_mul_size_checked_#in~r#1.offset|) (= (store |c_old(#memory_$Pointer$#2.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| (store (select |c_old(#memory_$Pointer$#2.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| (select (select |c_#memory_$Pointer$#2.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|))) |c_#memory_$Pointer$#2.base|))) is different from true [2024-10-13 07:27:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-10-13 07:27:44,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:44,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634027502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:44,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:44,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2024-10-13 07:27:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425723580] [2024-10-13 07:27:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:44,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 07:27:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 07:27:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=539, Unknown=1, NotChecked=46, Total=650 [2024-10-13 07:27:44,637 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand has 17 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2024-10-13 07:27:47,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:47,611 INFO L93 Difference]: Finished difference Result 300 states and 416 transitions. [2024-10-13 07:27:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-13 07:27:47,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) Word has length 171 [2024-10-13 07:27:47,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:47,614 INFO L225 Difference]: With dead ends: 300 [2024-10-13 07:27:47,614 INFO L226 Difference]: Without dead ends: 212 [2024-10-13 07:27:47,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=130, Invalid=1133, Unknown=1, NotChecked=68, Total=1332 [2024-10-13 07:27:47,617 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 99 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 351 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:47,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1024 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1446 Invalid, 0 Unknown, 351 Unchecked, 2.6s Time] [2024-10-13 07:27:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-10-13 07:27:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 153. [2024-10-13 07:27:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 92 states have internal predecessors, (106), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 203 transitions. [2024-10-13 07:27:47,642 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 203 transitions. Word has length 171 [2024-10-13 07:27:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:47,643 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 203 transitions. [2024-10-13 07:27:47,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2024-10-13 07:27:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 203 transitions. [2024-10-13 07:27:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-13 07:27:47,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:47,647 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:47,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:27:47,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:47,848 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:47,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash -238612999, now seen corresponding path program 1 times [2024-10-13 07:27:47,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:47,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431974032] [2024-10-13 07:27:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 07:27:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-13 07:27:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:27:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-13 07:27:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-13 07:27:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-13 07:27:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:49,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431974032] [2024-10-13 07:27:49,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431974032] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275274611] [2024-10-13 07:27:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:49,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:49,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:49,091 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) [2024-10-13 07:27:49,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:27:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 07:27:49,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 194 proven. 1 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-10-13 07:27:49,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:50,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275274611] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:50,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:50,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2024-10-13 07:27:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267007659] [2024-10-13 07:27:50,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:50,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 07:27:50,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 07:27:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:50,143 INFO L87 Difference]: Start difference. First operand 153 states and 203 transitions. Second operand has 19 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-10-13 07:27:52,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:52,010 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2024-10-13 07:27:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 07:27:52,010 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 173 [2024-10-13 07:27:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:52,013 INFO L225 Difference]: With dead ends: 315 [2024-10-13 07:27:52,013 INFO L226 Difference]: Without dead ends: 208 [2024-10-13 07:27:52,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-10-13 07:27:52,015 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 138 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:52,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1551 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 07:27:52,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-13 07:27:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 154. [2024-10-13 07:27:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 91 states have (on average 1.1758241758241759) internal successors, (107), 93 states have internal predecessors, (107), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2024-10-13 07:27:52,043 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 173 [2024-10-13 07:27:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:52,044 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2024-10-13 07:27:52,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 16 states have internal predecessors, (85), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-10-13 07:27:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2024-10-13 07:27:52,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-13 07:27:52,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:52,048 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:52,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:52,248 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,SelfDestructingSolverStorable5 [2024-10-13 07:27:52,249 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:52,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2095030990, now seen corresponding path program 2 times [2024-10-13 07:27:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:52,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751590066] [2024-10-13 07:27:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:52,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:27:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:27:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:27:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-13 07:27:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:53,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:53,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751590066] [2024-10-13 07:27:53,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751590066] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:53,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058562457] [2024-10-13 07:27:53,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:27:53,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:53,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:53,672 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) [2024-10-13 07:27:53,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:27:54,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 07:27:54,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:54,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 07:27:54,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-10-13 07:27:54,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:54,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058562457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:54,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:54,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-13 07:27:54,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320168656] [2024-10-13 07:27:54,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:54,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:27:54,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:54,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:27:54,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:27:54,303 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-13 07:27:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:54,720 INFO L93 Difference]: Finished difference Result 250 states and 331 transitions. [2024-10-13 07:27:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:27:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 174 [2024-10-13 07:27:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:54,722 INFO L225 Difference]: With dead ends: 250 [2024-10-13 07:27:54,723 INFO L226 Difference]: Without dead ends: 161 [2024-10-13 07:27:54,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:54,724 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 6 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:54,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 665 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:27:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-13 07:27:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157. [2024-10-13 07:27:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 96 states have internal predecessors, (111), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 208 transitions. [2024-10-13 07:27:54,748 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 208 transitions. Word has length 174 [2024-10-13 07:27:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:54,749 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 208 transitions. [2024-10-13 07:27:54,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-10-13 07:27:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 208 transitions. [2024-10-13 07:27:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-13 07:27:54,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:54,753 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:54,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 07:27:54,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:54,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:54,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:54,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1414972620, now seen corresponding path program 1 times [2024-10-13 07:27:54,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:54,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724928040] [2024-10-13 07:27:54,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:54,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:27:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:27:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:27:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:27:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:27:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:27:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:27:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:27:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:27:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:27:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-13 07:27:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:56,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724928040] [2024-10-13 07:27:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724928040] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710157104] [2024-10-13 07:27:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:56,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:56,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:56,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:27:56,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:27:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 2575 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 07:27:56,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 194 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-10-13 07:27:57,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:27:57,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710157104] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:57,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:57,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 22 [2024-10-13 07:27:57,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194289377] [2024-10-13 07:27:57,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:57,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 07:27:57,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 07:27:57,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-10-13 07:27:57,491 INFO L87 Difference]: Start difference. First operand 157 states and 208 transitions. Second operand has 22 states, 20 states have (on average 4.4) internal successors, (88), 19 states have internal predecessors, (88), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-10-13 07:27:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:59,415 INFO L93 Difference]: Finished difference Result 325 states and 445 transitions. [2024-10-13 07:27:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 07:27:59,416 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.4) internal successors, (88), 19 states have internal predecessors, (88), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 174 [2024-10-13 07:27:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:59,418 INFO L225 Difference]: With dead ends: 325 [2024-10-13 07:27:59,418 INFO L226 Difference]: Without dead ends: 215 [2024-10-13 07:27:59,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2024-10-13 07:27:59,419 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 139 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:59,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1688 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 07:27:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-13 07:27:59,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 158. [2024-10-13 07:27:59,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 97 states have internal predecessors, (112), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2024-10-13 07:27:59,435 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 209 transitions. Word has length 174 [2024-10-13 07:27:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:59,435 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 209 transitions. [2024-10-13 07:27:59,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.4) internal successors, (88), 19 states have internal predecessors, (88), 6 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-10-13 07:27:59,436 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 209 transitions. [2024-10-13 07:27:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-13 07:27:59,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:59,437 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:59,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:59,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:59,638 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:59,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:59,638 INFO L85 PathProgramCache]: Analyzing trace with hash 743492247, now seen corresponding path program 2 times [2024-10-13 07:27:59,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:59,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005480464] [2024-10-13 07:27:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:59,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 07:28:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:28:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:28:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:28:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:28:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:28:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:28:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:28:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:28:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:28:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:28:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 07:28:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:28:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:28:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:28:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-13 07:28:01,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:01,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005480464] [2024-10-13 07:28:01,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005480464] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:01,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631188924] [2024-10-13 07:28:01,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:28:01,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:01,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:01,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:01,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:28:02,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:28:02,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:28:02,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 165 conjuncts are in the unsatisfiable core [2024-10-13 07:28:02,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:02,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 07:28:02,935 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-10-13 07:28:02,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-10-13 07:28:03,238 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-10-13 07:28:03,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-10-13 07:28:03,385 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-10-13 07:28:03,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-10-13 07:28:04,141 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-10-13 07:28:04,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-10-13 07:28:04,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 07:28:04,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2024-10-13 07:28:07,144 INFO L349 Elim1Store]: treesize reduction 176, result has 29.3 percent of original size [2024-10-13 07:28:07,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 187 treesize of output 325 [2024-10-13 07:28:07,404 INFO L349 Elim1Store]: treesize reduction 16, result has 86.8 percent of original size [2024-10-13 07:28:07,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 239 [2024-10-13 07:28:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-10-13 07:28:07,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:08,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631188924] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:08,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 07:28:08,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 30] total 41 [2024-10-13 07:28:08,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246856424] [2024-10-13 07:28:08,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-13 07:28:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-13 07:28:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1857, Unknown=0, NotChecked=0, Total=1980 [2024-10-13 07:28:08,857 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. Second operand has 41 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 16 states have call successors, (65), 10 states have call predecessors, (65), 8 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) [2024-10-13 07:28:14,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:28:33,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 07:28:39,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 07:28:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:44,438 INFO L93 Difference]: Finished difference Result 346 states and 470 transitions. [2024-10-13 07:28:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-13 07:28:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 16 states have call successors, (65), 10 states have call predecessors, (65), 8 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) Word has length 175 [2024-10-13 07:28:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:44,441 INFO L225 Difference]: With dead ends: 346 [2024-10-13 07:28:44,441 INFO L226 Difference]: Without dead ends: 234 [2024-10-13 07:28:44,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 184 SyntacticMatches, 33 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1888 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=488, Invalid=6318, Unknown=0, NotChecked=0, Total=6806 [2024-10-13 07:28:44,444 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 364 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 237 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 4264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:44,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1831 Invalid, 4264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [237 Valid, 4012 Invalid, 15 Unknown, 0 Unchecked, 29.3s Time] [2024-10-13 07:28:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-13 07:28:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 184. [2024-10-13 07:28:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 118 states have internal predecessors, (137), 49 states have call successors, (49), 16 states have call predecessors, (49), 18 states have return successors, (56), 49 states have call predecessors, (56), 48 states have call successors, (56) [2024-10-13 07:28:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 242 transitions. [2024-10-13 07:28:44,465 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 242 transitions. Word has length 175 [2024-10-13 07:28:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 242 transitions. [2024-10-13 07:28:44,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 16 states have call successors, (65), 10 states have call predecessors, (65), 8 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) [2024-10-13 07:28:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 242 transitions. [2024-10-13 07:28:44,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-13 07:28:44,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:44,467 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:44,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 07:28:44,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:44,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:44,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1954306324, now seen corresponding path program 1 times [2024-10-13 07:28:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:44,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005968719] [2024-10-13 07:28:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms