./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:36:19,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:36:19,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:36:19,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:36:19,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:36:19,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:36:19,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:36:19,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:36:19,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:36:19,846 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:36:19,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:36:19,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:36:19,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:36:19,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:36:19,848 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:36:19,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:36:19,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:36:19,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:36:19,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:36:19,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:36:19,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:36:19,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:36:19,851 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:36:19,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:36:19,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:36:19,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:36:19,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:36:19,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:36:19,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:36:19,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:19,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:36:19,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:36:19,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:36:19,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:36:19,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:36:19,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:36:19,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:36:19,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:36:19,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:36:19,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2024-11-12 08:36:20,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:36:20,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:36:20,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:36:20,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:36:20,198 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:36:20,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2024-11-12 08:36:21,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:36:22,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:36:22,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2024-11-12 08:36:22,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e8cbff2/c7845d1bf22b46eba6dbdef42cee1482/FLAG1db018b6d [2024-11-12 08:36:22,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e8cbff2/c7845d1bf22b46eba6dbdef42cee1482 [2024-11-12 08:36:22,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:36:22,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:36:22,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:22,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:36:22,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:36:22,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:22" (1/1) ... [2024-11-12 08:36:22,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e089676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:22, skipping insertion in model container [2024-11-12 08:36:22,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:22" (1/1) ... [2024-11-12 08:36:22,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:36:22,768 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2024-11-12 08:36:22,780 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2024-11-12 08:36:24,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,700 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,700 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,703 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,725 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,726 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,728 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,728 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,729 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,730 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:24,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,377 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,384 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:25,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:36:25,504 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2024-11-12 08:36:25,505 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2024-11-12 08:36:25,586 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,587 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,587 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,588 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,592 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,611 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,612 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,613 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,614 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,614 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,615 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,721 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,726 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:25,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-12 08:36:25,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:25,969 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:36:25,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25 WrapperNode [2024-11-12 08:36:25,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:25,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:25,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:36:25,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:36:25,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,143 INFO L138 Inliner]: procedures = 680, calls = 1695, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 617 [2024-11-12 08:36:26,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:26,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:36:26,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:36:26,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:36:26,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,266 INFO L175 MemorySlicer]: Split 319 memory accesses to 6 slices as follows [238, 2, 8, 6, 3, 62]. 75 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 0, 1, 10]. The 240 writes are split as follows [232, 0, 1, 2, 1, 4]. [2024-11-12 08:36:26,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:36:26,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:36:26,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:36:26,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:36:26,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (1/1) ... [2024-11-12 08:36:26,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:26,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:36:26,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 08:36:26,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 08:36:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:36:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-12 08:36:26,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-12 08:36:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-12 08:36:26,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-12 08:36:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:36:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:36:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:36:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:36:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:36:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:36:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:36:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:36:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:36:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-12 08:36:26,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-12 08:36:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:36:26,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:36:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:36:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:36:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:36:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:36:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:36:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-12 08:36:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-12 08:36:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-12 08:36:26,464 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-12 08:36:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:36:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:36:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:36:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:36:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:36:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:36:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-12 08:36:26,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-12 08:36:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:36:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:36:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-12 08:36:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-12 08:36:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:36:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:36:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:36:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:36:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:36:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:36:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:36:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-12 08:36:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-12 08:36:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-12 08:36:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-12 08:36:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:36:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:36:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:36:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:36:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:36:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:36:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:36:26,839 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:36:26,846 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:36:33,512 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-12 08:36:33,513 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:36:33,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:36:33,531 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 08:36:33,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:33 BoogieIcfgContainer [2024-11-12 08:36:33,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:36:33,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:36:33,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:36:33,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:36:33,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:36:22" (1/3) ... [2024-11-12 08:36:33,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ed6c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:33, skipping insertion in model container [2024-11-12 08:36:33,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:25" (2/3) ... [2024-11-12 08:36:33,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ed6c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:33, skipping insertion in model container [2024-11-12 08:36:33,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:33" (3/3) ... [2024-11-12 08:36:33,541 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2024-11-12 08:36:33,562 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:36:33,562 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:36:33,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:36:33,660 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;@4fedb41b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:36:33,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:36:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 104 states have (on average 1.2019230769230769) internal successors, (125), 105 states have internal predecessors, (125), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-12 08:36:33,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-12 08:36:33,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:33,682 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:33,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:33,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:33,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1312837075, now seen corresponding path program 1 times [2024-11-12 08:36:33,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:33,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994382599] [2024-11-12 08:36:33,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:33,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:36:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:36:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:36:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:36:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:36:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:36:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:36:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 08:36:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:36:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 08:36:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:36:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 08:36:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-12 08:36:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-12 08:36:40,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:36:40,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994382599] [2024-11-12 08:36:40,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994382599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:36:40,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:36:40,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:36:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343721926] [2024-11-12 08:36:40,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:36:40,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:36:40,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:36:40,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:36:40,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:36:40,911 INFO L87 Difference]: Start difference. First operand has 170 states, 104 states have (on average 1.2019230769230769) internal successors, (125), 105 states have internal predecessors, (125), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:36:45,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:36:49,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:36:54,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:36:54,981 INFO L93 Difference]: Finished difference Result 375 states and 547 transitions. [2024-11-12 08:36:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:36:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-12 08:36:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:36:54,995 INFO L225 Difference]: With dead ends: 375 [2024-11-12 08:36:54,996 INFO L226 Difference]: Without dead ends: 207 [2024-11-12 08:36:55,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:36:55,005 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 138 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 155 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-12 08:36:55,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 218 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 270 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2024-11-12 08:36:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-12 08:36:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 165. [2024-11-12 08:36:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 100 states have (on average 1.18) internal successors, (118), 101 states have internal predecessors, (118), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-12 08:36:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 213 transitions. [2024-11-12 08:36:55,081 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 213 transitions. Word has length 84 [2024-11-12 08:36:55,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:36:55,082 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 213 transitions. [2024-11-12 08:36:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:36:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 213 transitions. [2024-11-12 08:36:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-12 08:36:55,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:55,087 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:55,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:36:55,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:55,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:55,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1318781865, now seen corresponding path program 1 times [2024-11-12 08:36:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027331461] [2024-11-12 08:36:55,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:55,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:37:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:00,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:37:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:37:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:37:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:37:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 08:37:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:37:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 08:37:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:37:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 08:37:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-12 08:37:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-12 08:37:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027331461] [2024-11-12 08:37:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027331461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:37:01,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:37:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:37:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241335593] [2024-11-12 08:37:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:37:01,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:37:01,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:01,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:37:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:37:01,538 INFO L87 Difference]: Start difference. First operand 165 states and 213 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:37:05,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:37:10,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:37:17,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:37:17,843 INFO L93 Difference]: Finished difference Result 346 states and 465 transitions. [2024-11-12 08:37:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:37:17,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-12 08:37:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:37:17,846 INFO L225 Difference]: With dead ends: 346 [2024-11-12 08:37:17,847 INFO L226 Difference]: Without dead ends: 208 [2024-11-12 08:37:17,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:37:17,849 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 140 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 154 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-12 08:37:17,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 305 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 396 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2024-11-12 08:37:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-12 08:37:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 166. [2024-11-12 08:37:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-12 08:37:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 214 transitions. [2024-11-12 08:37:17,885 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 214 transitions. Word has length 84 [2024-11-12 08:37:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:37:17,885 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 214 transitions. [2024-11-12 08:37:17,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:37:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 214 transitions. [2024-11-12 08:37:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-12 08:37:17,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:37:17,889 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:37:17,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:37:17,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:37:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:37:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash -589675925, now seen corresponding path program 1 times [2024-11-12 08:37:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:37:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420413093] [2024-11-12 08:37:17,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:37:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:37:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:37:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:23,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:37:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:37:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 08:37:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:37:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 08:37:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:37:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 08:37:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-12 08:37:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-12 08:37:24,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420413093] [2024-11-12 08:37:24,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420413093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:37:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617777404] [2024-11-12 08:37:24,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:24,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:24,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:37:24,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 08:37:24,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 08:37:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:29,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 4164 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 08:37:29,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:37:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 08:37:31,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 08:37:31,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617777404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:37:31,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 08:37:31,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-12 08:37:31,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357491919] [2024-11-12 08:37:31,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:37:31,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:37:31,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:31,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:37:31,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-12 08:37:31,064 INFO L87 Difference]: Start difference. First operand 166 states and 214 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-12 08:37:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:37:33,731 INFO L93 Difference]: Finished difference Result 296 states and 390 transitions. [2024-11-12 08:37:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:37:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2024-11-12 08:37:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:37:33,735 INFO L225 Difference]: With dead ends: 296 [2024-11-12 08:37:33,736 INFO L226 Difference]: Without dead ends: 168 [2024-11-12 08:37:33,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-12 08:37:33,737 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 227 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-12 08:37:33,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 648 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-12 08:37:33,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-12 08:37:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-12 08:37:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 104 states have internal predecessors, (120), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-12 08:37:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2024-11-12 08:37:33,759 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 220 transitions. Word has length 84 [2024-11-12 08:37:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:37:33,761 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 220 transitions. [2024-11-12 08:37:33,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-12 08:37:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2024-11-12 08:37:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-12 08:37:33,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:37:33,763 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:37:33,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 08:37:33,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:33,972 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:37:33,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:37:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash -911896437, now seen corresponding path program 1 times [2024-11-12 08:37:33,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:37:33,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322117358] [2024-11-12 08:37:33,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:33,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:40,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:37:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:40,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:40,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:37:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:40,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:37:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:37:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:41,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:41,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:37:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:41,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:37:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:41,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 08:37:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:37:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 08:37:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-12 08:37:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-12 08:37:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-12 08:37:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-12 08:37:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:42,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322117358] [2024-11-12 08:37:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322117358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:37:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455956546] [2024-11-12 08:37:42,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:37:42,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 08:37:42,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process