./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:00:03,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:00:03,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:00:03,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:00:03,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:00:03,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:00:03,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:00:03,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:00:03,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:00:03,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:00:03,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:00:03,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:00:03,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:00:03,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:00:03,594 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:00:03,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:00:03,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:00:03,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:00:03,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:00:03,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:00:03,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:00:03,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:00:03,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:00:03,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:00:03,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:00:03,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:00:03,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:00:03,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:00:03,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:00:03,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:00:03,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:00:03,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:00:03,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:00:03,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:00:03,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:00:03,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:00:03,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:00:03,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:00:03,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:00:03,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2024-11-19 02:00:03,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:00:03,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:00:03,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:00:03,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:00:03,902 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:00:03,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-11-19 02:00:05,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:00:05,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:00:05,864 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-11-19 02:00:05,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b960e020/106ef6b2746d437882b49422d9ba2261/FLAG36710e70e [2024-11-19 02:00:05,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b960e020/106ef6b2746d437882b49422d9ba2261 [2024-11-19 02:00:05,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:00:05,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:00:05,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:00:05,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:00:06,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:00:06,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:05" (1/1) ... [2024-11-19 02:00:06,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b4a019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:06, skipping insertion in model container [2024-11-19 02:00:06,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:05" (1/1) ... [2024-11-19 02:00:06,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:00:06,471 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2024-11-19 02:00:06,481 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2024-11-19 02:00:07,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,226 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,227 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,242 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,242 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,247 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,247 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,683 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,688 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,693 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,742 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:00:07,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:00:07,801 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2024-11-19 02:00:07,802 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2024-11-19 02:00:07,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,856 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,856 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,867 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,868 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,869 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,869 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,870 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,959 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,960 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,961 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,965 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:07,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-19 02:00:08,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:00:08,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:00:08,272 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:00:08,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08 WrapperNode [2024-11-19 02:00:08,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:00:08,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:00:08,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:00:08,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:00:08,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,442 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 812 [2024-11-19 02:00:08,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:00:08,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:00:08,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:00:08,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:00:08,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,594 INFO L175 MemorySlicer]: Split 328 memory accesses to 7 slices as follows [238, 2, 9, 6, 2, 6, 65]. 73 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 1, 0, 0, 10]. The 242 writes are split as follows [232, 0, 1, 1, 1, 2, 5]. [2024-11-19 02:00:08,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:00:08,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:00:08,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:00:08,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:00:08,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (1/1) ... [2024-11-19 02:00:08,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:00:08,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:00:08,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:00:08,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:00:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:00:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:00:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:00:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:00:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:00:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:00:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:00:08,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-19 02:00:08,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-19 02:00:08,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:00:08,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:00:08,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:00:08,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:00:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:00:08,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:00:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:00:08,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:00:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:00:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:00:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:00:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:00:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:00:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:00:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:00:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:00:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 02:00:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 02:00:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:00:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:00:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-19 02:00:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-19 02:00:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:00:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:00:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-19 02:00:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-19 02:00:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:00:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 02:00:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:00:08,817 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:00:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:00:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:00:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-19 02:00:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-19 02:00:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2024-11-19 02:00:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2024-11-19 02:00:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:00:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:00:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:00:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:00:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:00:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:00:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 02:00:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:00:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:00:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:00:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 02:00:09,188 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:00:09,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:00:15,864 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-19 02:00:15,865 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:00:15,890 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:00:15,890 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 02:00:15,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:15 BoogieIcfgContainer [2024-11-19 02:00:15,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:00:15,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:00:15,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:00:15,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:00:15,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:00:05" (1/3) ... [2024-11-19 02:00:15,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cace71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:15, skipping insertion in model container [2024-11-19 02:00:15,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:08" (2/3) ... [2024-11-19 02:00:15,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cace71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:15, skipping insertion in model container [2024-11-19 02:00:15,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:15" (3/3) ... [2024-11-19 02:00:15,904 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2024-11-19 02:00:15,924 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:00:15,924 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:00:16,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:00:16,017 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;@779d6c43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:00:16,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:00:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-19 02:00:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 02:00:16,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:00:16,045 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:00:16,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:00:16,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:00:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1440839759, now seen corresponding path program 1 times [2024-11-19 02:00:16,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:00:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703970998] [2024-11-19 02:00:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:00:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-19 02:00:22,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:00:22,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703970998] [2024-11-19 02:00:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703970998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:00:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843479823] [2024-11-19 02:00:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:22,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:00:22,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:00:22,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:00:22,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:00:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:28,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:00:28,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:00:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-19 02:00:28,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:00:28,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843479823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:00:28,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:00:28,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:00:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529772540] [2024-11-19 02:00:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:00:28,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:00:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:00:28,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:00:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:00:28,534 INFO L87 Difference]: Start difference. First operand has 241 states, 145 states have (on average 1.206896551724138) internal successors, (175), 146 states have internal predecessors, (175), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 02:00:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:00:28,598 INFO L93 Difference]: Finished difference Result 475 states and 678 transitions. [2024-11-19 02:00:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:00:28,601 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-19 02:00:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:00:28,612 INFO L225 Difference]: With dead ends: 475 [2024-11-19 02:00:28,612 INFO L226 Difference]: Without dead ends: 230 [2024-11-19 02:00:28,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:00:28,627 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:00:28,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:00:28,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-19 02:00:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-19 02:00:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 02:00:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 304 transitions. [2024-11-19 02:00:28,708 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 304 transitions. Word has length 87 [2024-11-19 02:00:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:00:28,709 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 304 transitions. [2024-11-19 02:00:28,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 02:00:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 304 transitions. [2024-11-19 02:00:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 02:00:28,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:00:28,713 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:00:28,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 02:00:28,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 02:00:28,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:00:28,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:00:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 319336823, now seen corresponding path program 1 times [2024-11-19 02:00:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:00:28,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924692955] [2024-11-19 02:00:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:00:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 02:00:35,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:00:35,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924692955] [2024-11-19 02:00:35,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924692955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:00:35,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053442895] [2024-11-19 02:00:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:35,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:00:35,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:00:35,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:00:35,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:00:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:40,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:00:40,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:00:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 02:00:41,526 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:00:41,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053442895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:00:41,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:00:41,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:00:41,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562436693] [2024-11-19 02:00:41,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:00:41,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:00:41,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:00:41,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:00:41,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:00:41,530 INFO L87 Difference]: Start difference. First operand 230 states and 304 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 02:00:43,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:00:43,828 INFO L93 Difference]: Finished difference Result 436 states and 585 transitions. [2024-11-19 02:00:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:00:43,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 87 [2024-11-19 02:00:43,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:00:43,833 INFO L225 Difference]: With dead ends: 436 [2024-11-19 02:00:43,836 INFO L226 Difference]: Without dead ends: 232 [2024-11-19 02:00:43,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:00:43,839 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 314 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 02:00:43,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 990 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 02:00:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-19 02:00:43,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-19 02:00:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 140 states have internal predecessors, (162), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-11-19 02:00:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2024-11-19 02:00:43,872 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 87 [2024-11-19 02:00:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:00:43,873 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2024-11-19 02:00:43,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 02:00:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2024-11-19 02:00:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 02:00:43,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:00:43,877 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-11-19 02:00:43,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 02:00:44,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 02:00:44,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:00:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:00:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1862510502, now seen corresponding path program 1 times [2024-11-19 02:00:44,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:00:44,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42930869] [2024-11-19 02:00:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:44,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:00:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-19 02:00:49,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:00:49,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42930869] [2024-11-19 02:00:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42930869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:00:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453535061] [2024-11-19 02:00:49,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:49,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:00:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:00:49,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:00:49,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:00:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:00:55,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 4387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 02:00:55,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:00:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 02:00:55,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:00:55,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453535061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:00:55,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:00:55,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-19 02:00:55,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276580652] [2024-11-19 02:00:55,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:00:55,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:00:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:00:55,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:00:55,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:00:55,353 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 02:00:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:00:55,515 INFO L93 Difference]: Finished difference Result 440 states and 610 transitions. [2024-11-19 02:00:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:00:55,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-19 02:00:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:00:55,520 INFO L225 Difference]: With dead ends: 440 [2024-11-19 02:00:55,521 INFO L226 Difference]: Without dead ends: 234 [2024-11-19 02:00:55,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:00:55,524 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:00:55,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 899 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:00:55,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-19 02:00:55,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-19 02:00:55,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-11-19 02:00:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 317 transitions. [2024-11-19 02:00:55,558 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 317 transitions. Word has length 102 [2024-11-19 02:00:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:00:55,559 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 317 transitions. [2024-11-19 02:00:55,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 02:00:55,559 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 317 transitions. [2024-11-19 02:00:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 02:00:55,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:00:55,562 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-11-19 02:00:55,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:00:55,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:00:55,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:00:55,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:00:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1301810724, now seen corresponding path program 1 times [2024-11-19 02:00:55,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:00:55,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687143289] [2024-11-19 02:00:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:00:55,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:01:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:01:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 02:01:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:01:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687143289] [2024-11-19 02:01:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687143289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:01:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949030035] [2024-11-19 02:01:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:01:01,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:01:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:01:01,784 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) [2024-11-19 02:01:01,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 02:01:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:01:07,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:01:07,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:01:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 02:01:08,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:01:08,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949030035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:01:08,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:01:08,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-19 02:01:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308626055] [2024-11-19 02:01:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:01:08,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:01:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:01:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:01:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:01:08,325 INFO L87 Difference]: Start difference. First operand 234 states and 317 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 02:01:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:01:12,959 INFO L93 Difference]: Finished difference Result 432 states and 583 transitions. [2024-11-19 02:01:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:01:12,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 102 [2024-11-19 02:01:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:01:12,962 INFO L225 Difference]: With dead ends: 432 [2024-11-19 02:01:12,963 INFO L226 Difference]: Without dead ends: 234 [2024-11-19 02:01:12,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-19 02:01:12,965 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 362 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:01:12,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1289 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 02:01:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-19 02:01:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-19 02:01:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2024-11-19 02:01:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2024-11-19 02:01:12,995 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 102 [2024-11-19 02:01:12,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:01:12,995 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2024-11-19 02:01:12,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 02:01:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2024-11-19 02:01:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 02:01:12,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:01:13,000 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:01:13,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 02:01:13,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:01:13,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:01:13,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:01:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1032976103, now seen corresponding path program 2 times [2024-11-19 02:01:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:01:13,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086787739] [2024-11-19 02:01:13,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:01:13,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:01:17,359 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 02:01:17,359 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:01:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-19 02:01:18,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:01:18,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086787739] [2024-11-19 02:01:18,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086787739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:01:18,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:01:18,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:01:18,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938918506] [2024-11-19 02:01:18,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:01:18,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:01:18,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:01:18,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:01:18,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:01:18,402 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 02:01:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:01:18,596 INFO L93 Difference]: Finished difference Result 409 states and 535 transitions. [2024-11-19 02:01:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:01:18,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-19 02:01:18,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:01:18,601 INFO L225 Difference]: With dead ends: 409 [2024-11-19 02:01:18,601 INFO L226 Difference]: Without dead ends: 239 [2024-11-19 02:01:18,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:01:18,602 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:01:18,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:01:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-19 02:01:18,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-11-19 02:01:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2024-11-19 02:01:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 316 transitions. [2024-11-19 02:01:18,620 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 316 transitions. Word has length 117 [2024-11-19 02:01:18,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:01:18,621 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 316 transitions. [2024-11-19 02:01:18,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 02:01:18,621 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 316 transitions. [2024-11-19 02:01:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-19 02:01:18,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:01:18,624 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:01:18,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 02:01:18,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:01:18,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:01:18,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1200499914, now seen corresponding path program 1 times [2024-11-19 02:01:18,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:01:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913723584] [2024-11-19 02:01:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:01:18,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:01:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:01:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 02:01:24,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:01:24,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913723584] [2024-11-19 02:01:24,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913723584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:01:24,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325298131] [2024-11-19 02:01:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:01:24,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:01:24,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:01:24,528 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) [2024-11-19 02:01:24,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 02:01:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:01:30,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 4523 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 02:01:30,114 INFO L278 TraceCheckSpWp]: Computing forward predicates...