./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 20:00:03,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 20:00:03,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 20:00:03,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 20:00:03,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 20:00:03,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 20:00:03,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 20:00:03,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 20:00:03,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 20:00:03,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 20:00:03,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 20:00:03,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 20:00:03,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 20:00:03,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 20:00:03,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 20:00:03,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 20:00:03,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 20:00:03,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 20:00:03,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 20:00:03,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 20:00:03,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 20:00:03,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 20:00:03,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 20:00:03,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 20:00:03,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 20:00:03,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 20:00:03,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 20:00:03,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 20:00:03,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 20:00:03,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:00:03,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 20:00:03,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 20:00:03,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 20:00:03,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 20:00:03,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 20:00:03,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 20:00:03,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 20:00:03,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 20:00:03,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 20:00:03,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2024-11-16 20:00:03,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 20:00:03,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 20:00:03,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 20:00:03,884 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 20:00:03,885 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 20:00:03,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-11-16 20:00:05,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 20:00:05,906 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 20:00:05,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-11-16 20:00:05,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1976fa4d0/b9e5f01d832f4dc1acdf36b735ac766c/FLAG832fb33c8 [2024-11-16 20:00:05,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1976fa4d0/b9e5f01d832f4dc1acdf36b735ac766c [2024-11-16 20:00:05,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 20:00:05,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 20:00:05,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 20:00:05,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 20:00:05,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 20:00:05,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:00:05" (1/1) ... [2024-11-16 20:00:05,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15405b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:05, skipping insertion in model container [2024-11-16 20:00:05,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:00:05" (1/1) ... [2024-11-16 20:00:06,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 20:00:06,366 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-11-16 20:00:06,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-11-16 20:00:07,011 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,013 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,013 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,026 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,027 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,028 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,029 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,397 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,398 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:00:07,491 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 20:00:07,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-11-16 20:00:07,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-11-16 20:00:07,589 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,593 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,594 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,595 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,595 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,609 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,610 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,614 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,614 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,696 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:00:07,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-16 20:00:07,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:00:07,955 INFO L204 MainTranslator]: Completed translation [2024-11-16 20:00:07,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07 WrapperNode [2024-11-16 20:00:07,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 20:00:07,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 20:00:07,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 20:00:07,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 20:00:07,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,121 INFO L138 Inliner]: procedures = 678, calls = 1512, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 737 [2024-11-16 20:00:08,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 20:00:08,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 20:00:08,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 20:00:08,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 20:00:08,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,267 INFO L175 MemorySlicer]: Split 287 memory accesses to 5 slices as follows [2, 238, 7, 35, 5]. 83 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 0, 5]. The 239 writes are split as follows [0, 232, 1, 6, 0]. [2024-11-16 20:00:08,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,315 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 20:00:08,365 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 20:00:08,365 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 20:00:08,365 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 20:00:08,366 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (1/1) ... [2024-11-16 20:00:08,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:00:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:00:08,405 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) [2024-11-16 20:00:08,408 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 [2024-11-16 20:00:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-16 20:00:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-16 20:00:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 20:00:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-16 20:00:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-16 20:00:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 20:00:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 20:00:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-16 20:00:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-16 20:00:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 20:00:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 20:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 20:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 20:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 20:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 20:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 20:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 20:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 20:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 20:00:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 20:00:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 20:00:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 20:00:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 20:00:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 20:00:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-16 20:00:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-16 20:00:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-16 20:00:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-16 20:00:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 20:00:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 20:00:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 20:00:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 20:00:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 20:00:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-16 20:00:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-16 20:00:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-16 20:00:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-16 20:00:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 20:00:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 20:00:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 20:00:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 20:00:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 20:00:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 20:00:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 20:00:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 20:00:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 20:00:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-16 20:00:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-16 20:00:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 20:00:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 20:00:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 20:00:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 20:00:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 20:00:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-16 20:00:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-16 20:00:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-16 20:00:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-16 20:00:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 20:00:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 20:00:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 20:00:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 20:00:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 20:00:08,794 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 20:00:08,797 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 20:00:08,842 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-16 20:00:08,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2024-11-16 20:00:08,887 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-16 20:00:08,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2024-11-16 20:00:08,936 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7341: havoc #t~ret657.base, #t~ret657.offset; [2024-11-16 20:00:09,039 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7494: havoc aws_priority_queue_backpointers_valid_#t~ret687#1;havoc aws_priority_queue_backpointers_valid_#t~short688#1; [2024-11-16 20:00:09,094 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2024-11-16 20:00:09,105 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 20:00:09,112 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2024-11-16 20:00:15,751 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3202: call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2024-11-16 20:00:15,832 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-16 20:00:15,833 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 20:00:15,855 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 20:00:15,858 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 20:00:15,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:00:15 BoogieIcfgContainer [2024-11-16 20:00:15,859 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 20:00:15,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 20:00:15,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 20:00:15,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 20:00:15,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:00:05" (1/3) ... [2024-11-16 20:00:15,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2959374c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:00:15, skipping insertion in model container [2024-11-16 20:00:15,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:00:07" (2/3) ... [2024-11-16 20:00:15,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2959374c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:00:15, skipping insertion in model container [2024-11-16 20:00:15,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:00:15" (3/3) ... [2024-11-16 20:00:15,868 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2024-11-16 20:00:15,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 20:00:15,929 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 20:00:16,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 20:00:16,017 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;@44e20b5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 20:00:16,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 20:00:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 136 states have (on average 1.2647058823529411) internal successors, (172), 138 states have internal predecessors, (172), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 20:00:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 20:00:16,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:00:16,041 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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] [2024-11-16 20:00:16,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:00:16,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:00:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1508810911, now seen corresponding path program 1 times [2024-11-16 20:00:16,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:00:16,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748835562] [2024-11-16 20:00:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:00:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:00:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:00:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:00:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:00:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 20:00:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 20:00:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 20:00:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:00:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 20:00:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 20:00:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 20:00:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:00:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 20:00:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 20:00:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 20:00:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 20:00:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 20:00:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-16 20:00:22,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:00:22,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748835562] [2024-11-16 20:00:22,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748835562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:00:22,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:00:22,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 20:00:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143441939] [2024-11-16 20:00:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:00:22,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 20:00:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:00:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 20:00:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 20:00:22,870 INFO L87 Difference]: Start difference. First operand has 210 states, 136 states have (on average 1.2647058823529411) internal successors, (172), 138 states have internal predecessors, (172), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 20:00:26,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:00:31,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:00:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:00:35,314 INFO L93 Difference]: Finished difference Result 434 states and 631 transitions. [2024-11-16 20:00:35,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 20:00:35,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-16 20:00:35,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:00:35,328 INFO L225 Difference]: With dead ends: 434 [2024-11-16 20:00:35,329 INFO L226 Difference]: Without dead ends: 226 [2024-11-16 20:00:35,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 20:00:35,340 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 163 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 136 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:00:35,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 387 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 202 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2024-11-16 20:00:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-16 20:00:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 202. [2024-11-16 20:00:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 131 states have internal predecessors, (157), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 20:00:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 267 transitions. [2024-11-16 20:00:35,420 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 267 transitions. Word has length 113 [2024-11-16 20:00:35,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:00:35,425 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 267 transitions. [2024-11-16 20:00:35,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 20:00:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 267 transitions. [2024-11-16 20:00:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 20:00:35,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:00:35,435 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:00:35,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 20:00:35,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:00:35,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:00:35,439 INFO L85 PathProgramCache]: Analyzing trace with hash 244738719, now seen corresponding path program 1 times [2024-11-16 20:00:35,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:00:35,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590256450] [2024-11-16 20:00:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:00:35,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:00:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:00:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:00:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:00:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 20:00:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 20:00:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 20:00:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:41,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:00:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 20:00:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 20:00:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 20:00:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:00:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 20:00:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:42,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 20:00:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 20:00:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 20:00:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 20:00:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 20:00:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 20:00:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-16 20:00:43,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:00:43,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590256450] [2024-11-16 20:00:43,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590256450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 20:00:43,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211122108] [2024-11-16 20:00:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:00:43,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 20:00:43,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:00:43,661 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) [2024-11-16 20:00:43,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 20:00:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:49,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 4364 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 20:00:49,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 20:00:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-16 20:00:50,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 20:00:50,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211122108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:00:50,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 20:00:50,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2024-11-16 20:00:50,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744151531] [2024-11-16 20:00:50,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:00:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 20:00:50,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:00:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 20:00:50,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 20:00:50,088 INFO L87 Difference]: Start difference. First operand 202 states and 267 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-16 20:00:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:00:50,925 INFO L93 Difference]: Finished difference Result 388 states and 507 transitions. [2024-11-16 20:00:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 20:00:50,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 149 [2024-11-16 20:00:50,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:00:50,930 INFO L225 Difference]: With dead ends: 388 [2024-11-16 20:00:50,931 INFO L226 Difference]: Without dead ends: 202 [2024-11-16 20:00:50,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 20:00:50,934 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 7 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 20:00:50,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1285 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 20:00:50,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-16 20:00:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2024-11-16 20:00:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 129 states have (on average 1.2093023255813953) internal successors, (156), 131 states have internal predecessors, (156), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 20:00:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 266 transitions. [2024-11-16 20:00:50,979 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 266 transitions. Word has length 149 [2024-11-16 20:00:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:00:50,980 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 266 transitions. [2024-11-16 20:00:50,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-16 20:00:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 266 transitions. [2024-11-16 20:00:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 20:00:50,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:00:50,987 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:00:51,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 20:00:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 20:00:51,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:00:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:00:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash -538202961, now seen corresponding path program 1 times [2024-11-16 20:00:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:00:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654657023] [2024-11-16 20:00:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:00:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:00:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:57,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:00:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:57,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:00:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:57,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:00:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:57,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 20:00:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 20:00:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 20:00:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:00:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 20:00:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 20:00:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 20:00:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:00:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:58,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 20:00:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:00:59,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:00:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 20:01:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 20:01:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 20:01:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 20:01:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 20:01:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 20:01:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-16 20:01:00,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:01:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654657023] [2024-11-16 20:01:00,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654657023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 20:01:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583197856] [2024-11-16 20:01:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:01:00,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 20:01:00,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:01:00,650 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) [2024-11-16 20:01:00,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 20:01:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:05,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 4382 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 20:01:05,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 20:01:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-16 20:01:06,472 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 20:01:06,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583197856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:01:06,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 20:01:06,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 20:01:06,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141143392] [2024-11-16 20:01:06,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:01:06,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:01:06,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:01:06,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:01:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 20:01:06,474 INFO L87 Difference]: Start difference. First operand 202 states and 266 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-16 20:01:06,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:01:06,575 INFO L93 Difference]: Finished difference Result 384 states and 504 transitions. [2024-11-16 20:01:06,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 20:01:06,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155 [2024-11-16 20:01:06,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:01:06,579 INFO L225 Difference]: With dead ends: 384 [2024-11-16 20:01:06,579 INFO L226 Difference]: Without dead ends: 204 [2024-11-16 20:01:06,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 20:01:06,580 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:01:06,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 526 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 20:01:06,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-16 20:01:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-16 20:01:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 133 states have internal predecessors, (158), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 20:01:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 268 transitions. [2024-11-16 20:01:06,607 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 268 transitions. Word has length 155 [2024-11-16 20:01:06,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:01:06,608 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 268 transitions. [2024-11-16 20:01:06,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-16 20:01:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 268 transitions. [2024-11-16 20:01:06,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 20:01:06,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:01:06,611 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:01:06,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 20:01:06,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-16 20:01:06,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:01:06,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:01:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1088359375, now seen corresponding path program 1 times [2024-11-16 20:01:06,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:01:06,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624370289] [2024-11-16 20:01:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:01:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:01:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:12,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:01:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:12,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:01:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:12,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:01:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:12,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 20:01:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:12,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 20:01:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 20:01:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:01:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 20:01:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 20:01:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 20:01:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:01:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:13,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 20:01:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:14,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 20:01:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 20:01:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 20:01:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 20:01:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:15,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 20:01:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:16,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:01:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 20:01:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-16 20:01:16,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:01:16,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624370289] [2024-11-16 20:01:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624370289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 20:01:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899718920] [2024-11-16 20:01:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:01:16,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 20:01:16,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:01:16,031 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) [2024-11-16 20:01:16,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 20:01:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:01:21,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 4422 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 20:01:21,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 20:01:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-16 20:01:24,199 INFO L311 TraceCheckSpWp]: Computing backward predicates...