./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:21:42,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:21:42,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:21:42,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:21:42,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:21:42,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:21:42,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:21:42,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:21:42,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:21:42,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:21:42,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:21:42,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:21:42,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:21:42,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:21:42,389 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:21:42,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:21:42,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:21:42,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:21:42,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:21:42,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:21:42,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:21:42,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:21:42,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:21:42,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:21:42,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:21:42,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:21:42,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:21:42,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:21:42,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:21:42,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:21:42,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:21:42,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:21:42,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:21:42,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:21:42,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:21:42,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:21:42,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:21:42,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:21:42,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:21:42,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2024-10-13 07:21:42,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:21:42,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:21:42,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:21:42,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:21:42,678 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:21:42,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-10-13 07:21:44,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:21:44,512 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:21:44,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-10-13 07:21:44,554 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a67a9ec/510baa3583ad44138ed7c733e1857a5c/FLAG97c96ed84 [2024-10-13 07:21:44,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a67a9ec/510baa3583ad44138ed7c733e1857a5c [2024-10-13 07:21:44,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:21:44,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:21:44,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:21:44,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:21:44,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:21:44,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:44" (1/1) ... [2024-10-13 07:21:44,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306c7214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:44, skipping insertion in model container [2024-10-13 07:21:44,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:44" (1/1) ... [2024-10-13 07:21:44,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:21:45,077 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2024-10-13 07:21:45,087 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2024-10-13 07:21:45,976 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,977 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,977 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,978 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,979 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,998 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:45,999 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,001 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,001 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,003 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,004 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,004 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,005 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,475 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,484 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:21:46,580 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:21:46,624 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2024-10-13 07:21:46,625 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2024-10-13 07:21:46,731 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,731 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,732 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,734 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,734 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,742 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,745 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,747 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,748 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,748 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,749 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,752 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,752 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,822 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,827 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:21:46,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2024-10-13 07:21:46,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:21:47,060 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:21:47,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47 WrapperNode [2024-10-13 07:21:47,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:21:47,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:21:47,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:21:47,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:21:47,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,230 INFO L138 Inliner]: procedures = 680, calls = 1671, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 896 [2024-10-13 07:21:47,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:21:47,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:21:47,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:21:47,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:21:47,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,360 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [236, 2, 8, 74, 6, 6]. 71 percent of accesses are in the largest equivalence class. The 254 initializations are split as follows [236, 2, 5, 10, 1, 0]. The 9 writes are split as follows [0, 0, 0, 6, 1, 2]. [2024-10-13 07:21:47,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:21:47,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:21:47,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:21:47,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:21:47,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (1/1) ... [2024-10-13 07:21:47,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:21:47,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:21:47,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 07:21:47,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 07:21:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:21:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:21:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:21:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:21:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:21:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:21:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:21:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-13 07:21:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:21:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:21:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:21:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:21:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-13 07:21:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-13 07:21:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:21:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:21:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:21:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:21:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-13 07:21:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-13 07:21:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:21:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:21:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:21:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:21:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-13 07:21:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-13 07:21:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-10-13 07:21:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-10-13 07:21:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-13 07:21:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-13 07:21:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:21:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-13 07:21:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-10-13 07:21:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-10-13 07:21:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:21:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:21:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:21:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-10-13 07:21:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:21:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:21:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:21:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:21:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:21:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:21:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:21:47,934 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:21:47,936 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:21:48,981 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-10-13 07:21:48,982 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:21:49,082 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:21:49,084 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 07:21:49,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:49 BoogieIcfgContainer [2024-10-13 07:21:49,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:21:49,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:21:49,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:21:49,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:21:49,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:21:44" (1/3) ... [2024-10-13 07:21:49,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb6409e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:49, skipping insertion in model container [2024-10-13 07:21:49,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:47" (2/3) ... [2024-10-13 07:21:49,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb6409e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:49, skipping insertion in model container [2024-10-13 07:21:49,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:49" (3/3) ... [2024-10-13 07:21:49,092 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2024-10-13 07:21:49,109 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:21:49,109 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:21:49,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:21:49,197 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;@33c08505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:21:49,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:21:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 282 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 156 states have internal predecessors, (194), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-10-13 07:21:49,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 07:21:49,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:21:49,225 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:21:49,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:21:49,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:21:49,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2077187463, now seen corresponding path program 1 times [2024-10-13 07:21:49,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:21:49,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669052645] [2024-10-13 07:21:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:49,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:21:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:21:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:21:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:21:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:21:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:49,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:21:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:21:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:21:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 07:21:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:21:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 07:21:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-13 07:21:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:21:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:21:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:21:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:21:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-13 07:21:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:21:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:21:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:21:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:21:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-10-13 07:21:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669052645] [2024-10-13 07:21:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669052645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:21:50,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:21:50,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:21:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195657691] [2024-10-13 07:21:50,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:21:50,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:21:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:21:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:21:50,229 INFO L87 Difference]: Start difference. First operand has 282 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 156 states have internal predecessors, (194), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:21:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:21:51,526 INFO L93 Difference]: Finished difference Result 581 states and 907 transitions. [2024-10-13 07:21:51,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:21:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 129 [2024-10-13 07:21:51,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:21:51,544 INFO L225 Difference]: With dead ends: 581 [2024-10-13 07:21:51,544 INFO L226 Difference]: Without dead ends: 302 [2024-10-13 07:21:51,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:21:51,558 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 120 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:21:51,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 510 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:21:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-13 07:21:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 280. [2024-10-13 07:21:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 155 states have internal predecessors, (191), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-13 07:21:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2024-10-13 07:21:51,673 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 129 [2024-10-13 07:21:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:21:51,674 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2024-10-13 07:21:51,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:21:51,675 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2024-10-13 07:21:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 07:21:51,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:21:51,681 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:21:51,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:21:51,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:21:51,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:21:51,683 INFO L85 PathProgramCache]: Analyzing trace with hash 584125189, now seen corresponding path program 1 times [2024-10-13 07:21:51,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:21:51,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793343533] [2024-10-13 07:21:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:21:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:21:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:21:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:21:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:21:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:21:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:21:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:21:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 07:21:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:21:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 07:21:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-13 07:21:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:21:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:21:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:21:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:21:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-13 07:21:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:21:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:21:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:21:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:21:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-10-13 07:21:52,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:52,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793343533] [2024-10-13 07:21:52,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793343533] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:21:52,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257966274] [2024-10-13 07:21:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:52,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:21:52,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:21:52,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:21:52,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:21:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:52,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 07:21:52,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:21:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-13 07:21:53,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:21:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257966274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:21:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:21:53,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-13 07:21:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823566401] [2024-10-13 07:21:53,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:21:53,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:21:53,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:53,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:21:53,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:21:53,076 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:21:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:21:53,439 INFO L93 Difference]: Finished difference Result 538 states and 781 transitions. [2024-10-13 07:21:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:21:53,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 129 [2024-10-13 07:21:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:21:53,443 INFO L225 Difference]: With dead ends: 538 [2024-10-13 07:21:53,443 INFO L226 Difference]: Without dead ends: 282 [2024-10-13 07:21:53,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:21:53,447 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 110 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:21:53,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1180 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:21:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-10-13 07:21:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-10-13 07:21:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 155 states have (on average 1.238709677419355) internal successors, (192), 157 states have internal predecessors, (192), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2024-10-13 07:21:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 416 transitions. [2024-10-13 07:21:53,490 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 416 transitions. Word has length 129 [2024-10-13 07:21:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:21:53,492 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 416 transitions. [2024-10-13 07:21:53,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:21:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 416 transitions. [2024-10-13 07:21:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 07:21:53,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:21:53,499 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:21:53,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:21:53,700 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 [2024-10-13 07:21:53,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:21:53,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:21:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 461064697, now seen corresponding path program 1 times [2024-10-13 07:21:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:21:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622103532] [2024-10-13 07:21:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:21:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:21:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:21:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:21:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:21:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:21:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:21:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:21:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:21:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:21:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:21:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:21:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:21:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:21:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:21:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 07:21:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:21:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:21:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:21:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:21:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:21:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-10-13 07:21:54,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:54,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622103532] [2024-10-13 07:21:54,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622103532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:21:54,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929731041] [2024-10-13 07:21:54,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:54,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:21:54,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:21:54,650 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) [2024-10-13 07:21:54,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:21:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:55,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:21:55,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:21:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 07:21:55,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:21:55,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929731041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:21:55,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:21:55,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-13 07:21:55,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422169168] [2024-10-13 07:21:55,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:21:55,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:21:55,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:55,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:21:55,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 07:21:55,330 INFO L87 Difference]: Start difference. First operand 282 states and 416 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:21:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:21:55,810 INFO L93 Difference]: Finished difference Result 515 states and 760 transitions. [2024-10-13 07:21:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:21:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 155 [2024-10-13 07:21:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:21:55,815 INFO L225 Difference]: With dead ends: 515 [2024-10-13 07:21:55,816 INFO L226 Difference]: Without dead ends: 282 [2024-10-13 07:21:55,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:21:55,818 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 172 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:21:55,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1422 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:21:55,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-10-13 07:21:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-10-13 07:21:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 155 states have (on average 1.238709677419355) internal successors, (192), 157 states have internal predecessors, (192), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2024-10-13 07:21:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 413 transitions. [2024-10-13 07:21:55,856 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 413 transitions. Word has length 155 [2024-10-13 07:21:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:21:55,856 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 413 transitions. [2024-10-13 07:21:55,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:21:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 413 transitions. [2024-10-13 07:21:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-13 07:21:55,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:21:55,860 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:21:55,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 07:21:56,061 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 [2024-10-13 07:21:56,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:21:56,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:21:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash -203396278, now seen corresponding path program 2 times [2024-10-13 07:21:56,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:21:56,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155679817] [2024-10-13 07:21:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:56,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:21:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:21:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:21:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:21:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:21:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:21:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:21:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:21:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:21:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:21:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:21:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:21:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:21:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:21:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:21:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:21:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:21:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:21:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:21:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:56,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:21:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:57,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:21:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-10-13 07:21:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155679817] [2024-10-13 07:21:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155679817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:21:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10263333] [2024-10-13 07:21:57,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:21:57,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:21:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:21:57,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:21:57,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:21:57,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:21:57,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:21:57,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:21:57,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:21:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-10-13 07:21:57,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:21:57,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10263333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:21:57,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:21:57,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-13 07:21:57,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398022874] [2024-10-13 07:21:57,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:21:57,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:21:57,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:21:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:21:57,783 INFO L87 Difference]: Start difference. First operand 282 states and 413 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:21:58,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:21:58,336 INFO L93 Difference]: Finished difference Result 520 states and 764 transitions. [2024-10-13 07:21:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:21:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 168 [2024-10-13 07:21:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:21:58,346 INFO L225 Difference]: With dead ends: 520 [2024-10-13 07:21:58,347 INFO L226 Difference]: Without dead ends: 293 [2024-10-13 07:21:58,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:21:58,348 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 177 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:21:58,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 2096 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 07:21:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-13 07:21:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-13 07:21:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 160 states have (on average 1.2375) internal successors, (198), 162 states have internal predecessors, (198), 108 states have call successors, (108), 23 states have call predecessors, (108), 24 states have return successors, (123), 107 states have call predecessors, (123), 107 states have call successors, (123) [2024-10-13 07:21:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 429 transitions. [2024-10-13 07:21:58,380 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 429 transitions. Word has length 168 [2024-10-13 07:21:58,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:21:58,382 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 429 transitions. [2024-10-13 07:21:58,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:21:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 429 transitions. [2024-10-13 07:21:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-13 07:21:58,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:21:58,385 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:21:58,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 07:21:58,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:21:58,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:21:58,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:21:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1525826942, now seen corresponding path program 1 times [2024-10-13 07:21:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:21:58,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250157940] [2024-10-13 07:21:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:21:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:21:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:21:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:21:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:21:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:21:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:21:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:21:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:21:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:21:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:21:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:21:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:21:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:21:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:21:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:21:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:21:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:21:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:21:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:21:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:21:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 07:21:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:21:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:21:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:21:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-13 07:21:59,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250157940] [2024-10-13 07:21:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250157940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:21:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:21:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:21:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166989611] [2024-10-13 07:21:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:21:59,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:21:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:59,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:21:59,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:21:59,744 INFO L87 Difference]: Start difference. First operand 293 states and 429 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-10-13 07:22:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:22:01,642 INFO L93 Difference]: Finished difference Result 575 states and 842 transitions. [2024-10-13 07:22:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:22:01,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 194 [2024-10-13 07:22:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:22:01,647 INFO L225 Difference]: With dead ends: 575 [2024-10-13 07:22:01,647 INFO L226 Difference]: Without dead ends: 328 [2024-10-13 07:22:01,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:22:01,649 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 125 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:22:01,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1550 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 07:22:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-13 07:22:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 306. [2024-10-13 07:22:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 170 states have internal predecessors, (207), 112 states have call successors, (112), 23 states have call predecessors, (112), 25 states have return successors, (129), 112 states have call predecessors, (129), 111 states have call successors, (129) [2024-10-13 07:22:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2024-10-13 07:22:01,674 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 194 [2024-10-13 07:22:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:22:01,674 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2024-10-13 07:22:01,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-10-13 07:22:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2024-10-13 07:22:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-13 07:22:01,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:22:01,677 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:22:01,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 07:22:01,677 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:22:01,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:22:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1885631364, now seen corresponding path program 1 times [2024-10-13 07:22:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:22:01,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224515685] [2024-10-13 07:22:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:22:01,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:22:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:22:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:22:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:22:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:22:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:22:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:22:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:22:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:22:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:22:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:22:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:22:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:22:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:22:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:22:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:22:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:22:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:22:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:22:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:22:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 07:22:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-13 07:22:02,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:22:02,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224515685] [2024-10-13 07:22:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224515685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:22:02,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:22:02,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 07:22:02,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822958461] [2024-10-13 07:22:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:22:02,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:22:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:22:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:22:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:22:02,995 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:22:05,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:22:05,274 INFO L93 Difference]: Finished difference Result 579 states and 846 transitions. [2024-10-13 07:22:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:22:05,275 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 194 [2024-10-13 07:22:05,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:22:05,278 INFO L225 Difference]: With dead ends: 579 [2024-10-13 07:22:05,279 INFO L226 Difference]: Without dead ends: 336 [2024-10-13 07:22:05,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:22:05,282 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 124 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:22:05,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1866 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 07:22:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-10-13 07:22:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 312. [2024-10-13 07:22:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 171 states have (on average 1.2280701754385965) internal successors, (210), 173 states have internal predecessors, (210), 115 states have call successors, (115), 23 states have call predecessors, (115), 25 states have return successors, (132), 115 states have call predecessors, (132), 114 states have call successors, (132) [2024-10-13 07:22:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 457 transitions. [2024-10-13 07:22:05,321 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 457 transitions. Word has length 194 [2024-10-13 07:22:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:22:05,321 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 457 transitions. [2024-10-13 07:22:05,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:22:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 457 transitions. [2024-10-13 07:22:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-13 07:22:05,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:22:05,330 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:22:05,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 07:22:05,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:22:05,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:22:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1730063678, now seen corresponding path program 1 times [2024-10-13 07:22:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:22:05,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125941302] [2024-10-13 07:22:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:22:05,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:22:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:22:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:22:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:22:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:22:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:22:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:22:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:22:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:22:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:22:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:22:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:22:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:22:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 07:22:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:07,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:22:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:22:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:22:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 07:22:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:22:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:22:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 07:22:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-13 07:22:08,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:22:08,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125941302] [2024-10-13 07:22:08,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125941302] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:22:08,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727155642] [2024-10-13 07:22:08,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:22:08,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:22:08,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:22:08,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:22:08,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:22:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:08,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 2899 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-13 07:22:08,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:22:09,111 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#3.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#3.offset| (store |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2024-10-13 07:22:09,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 07:22:09,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 07:22:09,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 07:22:09,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 07:22:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 194 proven. 4 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 07:22:09,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:22:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727155642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:22:10,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 07:22:10,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 17 [2024-10-13 07:22:10,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688891988] [2024-10-13 07:22:10,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 07:22:10,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 07:22:10,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:22:10,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 07:22:10,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=397, Unknown=1, NotChecked=40, Total=506 [2024-10-13 07:22:10,254 INFO L87 Difference]: Start difference. First operand 312 states and 457 transitions. Second operand has 17 states, 15 states have (on average 6.4) internal successors, (96), 13 states have internal predecessors, (96), 7 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (48), 5 states have call predecessors, (48), 7 states have call successors, (48) [2024-10-13 07:22:17,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:22:17,882 INFO L93 Difference]: Finished difference Result 656 states and 945 transitions. [2024-10-13 07:22:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 07:22:17,883 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 13 states have internal predecessors, (96), 7 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (48), 5 states have call predecessors, (48), 7 states have call successors, (48) Word has length 194 [2024-10-13 07:22:17,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:22:17,887 INFO L225 Difference]: With dead ends: 656 [2024-10-13 07:22:17,887 INFO L226 Difference]: Without dead ends: 334 [2024-10-13 07:22:17,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 410 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=197, Invalid=862, Unknown=1, NotChecked=62, Total=1122 [2024-10-13 07:22:17,890 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 260 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 297 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 483 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:22:17,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1503 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 2235 Invalid, 4 Unknown, 483 Unchecked, 7.0s Time] [2024-10-13 07:22:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-13 07:22:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 316. [2024-10-13 07:22:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 174 states have (on average 1.2183908045977012) internal successors, (212), 176 states have internal predecessors, (212), 114 states have call successors, (114), 25 states have call predecessors, (114), 27 states have return successors, (131), 114 states have call predecessors, (131), 113 states have call successors, (131) [2024-10-13 07:22:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 457 transitions. [2024-10-13 07:22:17,920 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 457 transitions. Word has length 194 [2024-10-13 07:22:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:22:17,920 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 457 transitions. [2024-10-13 07:22:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 13 states have internal predecessors, (96), 7 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (48), 5 states have call predecessors, (48), 7 states have call successors, (48) [2024-10-13 07:22:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 457 transitions. [2024-10-13 07:22:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-10-13 07:22:17,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:22:17,924 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:22:17,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 07:22:18,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:22:18,129 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:22:18,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:22:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1955579455, now seen corresponding path program 1 times [2024-10-13 07:22:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:22:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266550137] [2024-10-13 07:22:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:22:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:22:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:22:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:22:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:22:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:22:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:22:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 07:22:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:22:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 07:22:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 07:22:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 07:22:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 07:22:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:22:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:22:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 07:22:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:22:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 07:22:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:22:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:22:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-13 07:22:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:22:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:22:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:22:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-10-13 07:22:19,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:22:19,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266550137] [2024-10-13 07:22:19,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266550137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:22:19,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713774480] [2024-10-13 07:22:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:22:19,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:22:19,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:22:19,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:22:19,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:22:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:22:20,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-13 07:22:20,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:22:20,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-13 07:22:20,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-10-13 07:22:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-10-13 07:22:21,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:22:21,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713774480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:22:21,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:22:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8] total 22 [2024-10-13 07:22:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041611125] [2024-10-13 07:22:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:22:21,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 07:22:21,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:22:21,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 07:22:21,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-10-13 07:22:21,592 INFO L87 Difference]: Start difference. First operand 316 states and 457 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-10-13 07:22:25,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:30,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:35,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:39,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:43,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:47,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:51,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:55,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:22:59,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:23:04,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]