./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 32bit --witnessprinter.graph.data.programhash 7a78b2f82c5c523b03c70ba898547797b8578723f2b367d871b1e6ef867cb4b5 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:08:50,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:08:50,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:08:50,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:08:50,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:08:50,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:08:50,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:08:50,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:08:50,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:08:50,513 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:08:50,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:08:50,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:08:50,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:08:50,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:08:50,517 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:08:50,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:08:50,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:08:50,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:08:50,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:08:50,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:08:50,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:08:50,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:08:50,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:08:50,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:08:50,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:08:50,523 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:08:50,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:08:50,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:08:50,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:08:50,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:08:50,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:08:50,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:08:50,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:08:50,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:08:50,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:08:50,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:08:50,525 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:08:50,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:08:50,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:08:50,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:08:50,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:08:50,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:08:50,528 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a78b2f82c5c523b03c70ba898547797b8578723f2b367d871b1e6ef867cb4b5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 13:08:50,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:08:50,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:08:50,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:08:50,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:08:50,786 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:08:50,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i [2024-09-20 13:08:52,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:08:52,430 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:08:52,431 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i [2024-09-20 13:08:52,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d983494cb/d107f0ad2ce14178802326133a2b4da7/FLAG7435119f6 [2024-09-20 13:08:52,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d983494cb/d107f0ad2ce14178802326133a2b4da7 [2024-09-20 13:08:52,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:08:52,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 13:08:52,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:08:52,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:08:52,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:08:52,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:08:52" (1/1) ... [2024-09-20 13:08:52,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6684715f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:52, skipping insertion in model container [2024-09-20 13:08:52,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:08:52" (1/1) ... [2024-09-20 13:08:52,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:08:53,023 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i[1898,1911] [2024-09-20 13:08:53,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:08:53,048 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:08:53,058 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_3.i[1898,1911] [2024-09-20 13:08:53,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:08:53,083 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:08:53,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53 WrapperNode [2024-09-20 13:08:53,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:08:53,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:08:53,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:08:53,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:08:53,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,106 INFO L138 Inliner]: procedures = 18, calls = 36, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 13:08:53,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:08:53,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:08:53,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:08:53,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:08:53,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,119 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,133 INFO L175 MemorySlicer]: Split 21 memory accesses to 4 slices as follows [2, 3, 4, 12]. 57 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1]. The 5 writes are split as follows [0, 1, 1, 3]. [2024-09-20 13:08:53,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:08:53,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:08:53,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:08:53,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:08:53,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (1/1) ... [2024-09-20 13:08:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:08:53,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:08:53,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:08:53,211 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:08:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:08:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:08:53,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:08:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-20 13:08:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-20 13:08:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-09-20 13:08:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:08:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:08:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_38_to_41_0 [2024-09-20 13:08:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_38_to_41_0 [2024-09-20 13:08:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_44_to_45_0 [2024-09-20 13:08:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_44_to_45_0 [2024-09-20 13:08:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:08:53,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:08:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:08:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:08:53,351 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:08:53,352 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:08:53,579 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-09-20 13:08:53,579 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:08:53,604 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:08:53,605 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:08:53,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:08:53 BoogieIcfgContainer [2024-09-20 13:08:53,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:08:53,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:08:53,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:08:53,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:08:53,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:08:52" (1/3) ... [2024-09-20 13:08:53,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600698ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:08:53, skipping insertion in model container [2024-09-20 13:08:53,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:08:53" (2/3) ... [2024-09-20 13:08:53,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600698ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:08:53, skipping insertion in model container [2024-09-20 13:08:53,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:08:53" (3/3) ... [2024-09-20 13:08:53,615 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_3.i [2024-09-20 13:08:53,635 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:08:53,635 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 13:08:53,700 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:08:53,708 INFO L336 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=All, 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;@7dbd8653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:08:53,709 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 13:08:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-20 13:08:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-20 13:08:53,724 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:08:53,725 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:08:53,725 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:08:53,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:53,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1199349225, now seen corresponding path program 1 times [2024-09-20 13:08:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:08:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111659488] [2024-09-20 13:08:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:08:53,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:08:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:08:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:08:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:08:54,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:08:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111659488] [2024-09-20 13:08:54,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111659488] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:08:54,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:08:54,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-20 13:08:54,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376193710] [2024-09-20 13:08:54,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:08:54,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-20 13:08:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:08:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-20 13:08:54,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-20 13:08:54,234 INFO L87 Difference]: Start difference. First operand has 31 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-20 13:08:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:08:54,467 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2024-09-20 13:08:54,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-20 13:08:54,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-09-20 13:08:54,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:08:54,476 INFO L225 Difference]: With dead ends: 60 [2024-09-20 13:08:54,477 INFO L226 Difference]: Without dead ends: 34 [2024-09-20 13:08:54,480 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-20 13:08:54,484 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:08:54,485 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 50 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:08:54,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-20 13:08:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2024-09-20 13:08:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 20 states have internal predecessors, (20), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-20 13:08:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-09-20 13:08:54,516 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 19 [2024-09-20 13:08:54,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:08:54,517 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-09-20 13:08:54,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-20 13:08:54,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-09-20 13:08:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-20 13:08:54,520 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:08:54,520 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:08:54,520 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:08:54,520 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:08:54,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:54,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1197502183, now seen corresponding path program 1 times [2024-09-20 13:08:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:08:54,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511697187] [2024-09-20 13:08:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:08:54,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:08:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:08:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:08:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:08:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:08:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511697187] [2024-09-20 13:08:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511697187] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:08:54,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:08:54,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-20 13:08:54,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9007693] [2024-09-20 13:08:54,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:08:54,936 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-20 13:08:54,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:08:54,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-20 13:08:54,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-20 13:08:54,937 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 13:08:55,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:08:55,082 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2024-09-20 13:08:55,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-20 13:08:55,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-09-20 13:08:55,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:08:55,083 INFO L225 Difference]: With dead ends: 51 [2024-09-20 13:08:55,084 INFO L226 Difference]: Without dead ends: 32 [2024-09-20 13:08:55,084 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-20 13:08:55,086 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 13:08:55,088 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 13:08:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-20 13:08:55,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-20 13:08:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 21 states have internal predecessors, (21), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-20 13:08:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-09-20 13:08:55,100 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 19 [2024-09-20 13:08:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:08:55,101 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-09-20 13:08:55,102 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 13:08:55,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-09-20 13:08:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-20 13:08:55,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:08:55,104 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:08:55,105 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-20 13:08:55,105 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:08:55,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:55,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1550867151, now seen corresponding path program 1 times [2024-09-20 13:08:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:08:55,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719169037] [2024-09-20 13:08:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:08:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:08:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:55,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:08:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:55,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:08:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:55,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:08:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:08:55,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:08:55,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719169037] [2024-09-20 13:08:55,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719169037] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:08:55,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120267773] [2024-09-20 13:08:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:08:55,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:08:55,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:08:55,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 13:08:55,764 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 13:08:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:55,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-20 13:08:55,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:08:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:08:56,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:08:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:08:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120267773] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:08:56,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:08:56,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 23 [2024-09-20 13:08:56,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731729601] [2024-09-20 13:08:56,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:08:56,662 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-20 13:08:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:08:56,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-20 13:08:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2024-09-20 13:08:56,667 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-20 13:08:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:08:57,145 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2024-09-20 13:08:57,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-20 13:08:57,146 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) Word has length 24 [2024-09-20 13:08:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:08:57,147 INFO L225 Difference]: With dead ends: 62 [2024-09-20 13:08:57,147 INFO L226 Difference]: Without dead ends: 43 [2024-09-20 13:08:57,148 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2024-09-20 13:08:57,148 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:08:57,149 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 40 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:08:57,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-09-20 13:08:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-09-20 13:08:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-20 13:08:57,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-09-20 13:08:57,169 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2024-09-20 13:08:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:08:57,171 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-09-20 13:08:57,171 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-20 13:08:57,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-09-20 13:08:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-20 13:08:57,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:08:57,173 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:08:57,192 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-20 13:08:57,378 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:08:57,379 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:08:57,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:08:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1345242693, now seen corresponding path program 2 times [2024-09-20 13:08:57,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:08:57,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290192635] [2024-09-20 13:08:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:08:57,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:08:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:58,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:08:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:58,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:08:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:58,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:08:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:59,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:08:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:59,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:08:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:59,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:08:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:08:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-20 13:08:59,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:08:59,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290192635] [2024-09-20 13:08:59,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290192635] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:08:59,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996342806] [2024-09-20 13:08:59,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 13:08:59,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:08:59,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:08:59,535 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 13:08:59,538 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-20 13:08:59,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 13:08:59,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:08:59,843 WARN L260 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 173 conjuncts are in the unsatisfiable core [2024-09-20 13:08:59,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:09:00,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-09-20 13:09:00,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:00,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:00,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:05,295 INFO L349 Elim1Store]: treesize reduction 447, result has 3.7 percent of original size [2024-09-20 13:09:05,295 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 3 case distinctions, treesize of input 123 treesize of output 25 [2024-09-20 13:09:05,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2024-09-20 13:09:05,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-20 13:09:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-20 13:09:06,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:09:12,616 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,618 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,619 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,622 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,623 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,626 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,629 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:12,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 411 treesize of output 526 [2024-09-20 13:09:12,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 99 treesize of output 83 [2024-09-20 13:09:12,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 99 treesize of output 83 [2024-09-20 13:09:12,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 97 treesize of output 81 [2024-09-20 13:09:12,937 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 209 treesize of output 188 [2024-09-20 13:09:12,952 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,954 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,955 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,956 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,957 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,958 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,960 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,962 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,964 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:12,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 136 treesize of output 84 [2024-09-20 13:09:12,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:12,998 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:13,000 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:13,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 101 [2024-09-20 13:09:13,011 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:13,013 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:13,014 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:13,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 65 [2024-09-20 13:09:13,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 20 treesize of output 8 [2024-09-20 13:09:15,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 154 treesize of output 146 [2024-09-20 13:09:15,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 146 treesize of output 138 [2024-09-20 13:09:15,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 138 treesize of output 130 [2024-09-20 13:09:15,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996342806] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:09:15,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-20 13:09:15,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23] total 39 [2024-09-20 13:09:15,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172230253] [2024-09-20 13:09:15,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-20 13:09:15,725 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-20 13:09:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:09:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-20 13:09:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2021, Unknown=0, NotChecked=0, Total=2162 [2024-09-20 13:09:15,729 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 39 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 33 states have internal predecessors, (45), 13 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-20 13:09:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:09:24,497 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2024-09-20 13:09:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-20 13:09:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 33 states have internal predecessors, (45), 13 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) Word has length 39 [2024-09-20 13:09:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:09:24,500 INFO L225 Difference]: With dead ends: 111 [2024-09-20 13:09:24,500 INFO L226 Difference]: Without dead ends: 86 [2024-09-20 13:09:24,503 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=761, Invalid=6895, Unknown=0, NotChecked=0, Total=7656 [2024-09-20 13:09:24,503 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 206 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-09-20 13:09:24,504 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 217 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-09-20 13:09:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-20 13:09:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 55. [2024-09-20 13:09:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.15625) internal successors, (37), 35 states have internal predecessors, (37), 13 states have call successors, (13), 11 states have call predecessors, (13), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-20 13:09:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-09-20 13:09:24,527 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 39 [2024-09-20 13:09:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:09:24,528 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-09-20 13:09:24,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 33 states have internal predecessors, (45), 13 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-20 13:09:24,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:09:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-09-20 13:09:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-20 13:09:24,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:09:24,530 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:09:24,549 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-20 13:09:24,731 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:09:24,731 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:09:24,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:09:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1348989219, now seen corresponding path program 3 times [2024-09-20 13:09:24,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:09:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136936563] [2024-09-20 13:09:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:09:24,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:09:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:25,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:09:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:25,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:09:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:26,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:09:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:26,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:09:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:26,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:09:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:26,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:09:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:27,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:09:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:09:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-20 13:09:27,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:09:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136936563] [2024-09-20 13:09:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136936563] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:09:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820005755] [2024-09-20 13:09:27,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-20 13:09:27,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:09:27,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:09:27,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 13:09:27,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-20 13:09:27,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-20 13:09:27,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:09:27,565 WARN L260 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 215 conjuncts are in the unsatisfiable core [2024-09-20 13:09:27,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:09:27,699 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 79 treesize of output 66 [2024-09-20 13:09:27,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-09-20 13:09:27,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-09-20 13:09:27,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:28,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:28,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:28,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 21 [2024-09-20 13:09:29,958 INFO L349 Elim1Store]: treesize reduction 792, result has 2.1 percent of original size [2024-09-20 13:09:29,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 71 [2024-09-20 13:09:30,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2024-09-20 13:09:30,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-20 13:09:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-20 13:09:31,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:09:45,531 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,532 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,534 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,536 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,538 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,539 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,540 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,561 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,564 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,568 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,576 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:45,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:45,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 40 case distinctions, treesize of input 999 treesize of output 1412 [2024-09-20 13:09:45,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 197 treesize of output 165 [2024-09-20 13:09:45,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 197 treesize of output 165 [2024-09-20 13:09:46,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 193 treesize of output 161 [2024-09-20 13:09:46,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 193 treesize of output 161 [2024-09-20 13:09:46,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 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 747 treesize of output 804 [2024-09-20 13:09:46,823 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,824 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,824 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,825 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,826 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,827 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,828 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,829 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,830 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,831 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 268 [2024-09-20 13:09:46,853 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,855 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,860 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,864 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 601 treesize of output 433 [2024-09-20 13:09:46,903 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,905 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,910 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,912 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,913 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,914 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,915 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,921 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,925 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,927 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:46,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:46,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 165 treesize of output 125 [2024-09-20 13:09:47,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 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 694 treesize of output 703 [2024-09-20 13:09:47,172 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,173 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,175 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,180 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,183 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:47,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 613 treesize of output 399 [2024-09-20 13:09:47,373 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,374 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,377 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,379 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,382 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,383 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:47,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 311 treesize of output 228 [2024-09-20 13:09:47,557 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,559 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,561 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,563 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,564 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,566 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,567 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,573 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:47,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 346 treesize of output 235 [2024-09-20 13:09:47,850 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,858 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,860 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,862 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,863 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,864 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:47,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 555 treesize of output 473 [2024-09-20 13:09:47,904 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,906 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,908 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,910 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 500 treesize of output 356 [2024-09-20 13:09:47,926 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,927 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,928 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,929 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,931 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,932 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-20 13:09:47,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 360 treesize of output 249 [2024-09-20 13:09:48,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-20 13:09:48,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 56 [2024-09-20 13:09:53,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 411 treesize of output 395 [2024-09-20 13:09:53,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 395 treesize of output 379 [2024-09-20 13:09:53,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 379 treesize of output 363 [2024-09-20 13:09:53,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 363 treesize of output 347 [2024-09-20 13:09:55,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820005755] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:09:55,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-20 13:09:55,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 43 [2024-09-20 13:09:55,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813709477] [2024-09-20 13:09:55,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-20 13:09:55,095 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-20 13:09:55,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:09:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-20 13:09:55,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2397, Unknown=0, NotChecked=0, Total=2550 [2024-09-20 13:09:55,098 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 43 states, 32 states have (on average 1.5) internal successors, (48), 37 states have internal predecessors, (48), 14 states have call successors, (16), 8 states have call predecessors, (16), 13 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-20 13:10:27,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:10:27,552 INFO L93 Difference]: Finished difference Result 134 states and 147 transitions. [2024-09-20 13:10:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-20 13:10:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 32 states have (on average 1.5) internal successors, (48), 37 states have internal predecessors, (48), 14 states have call successors, (16), 8 states have call predecessors, (16), 13 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) Word has length 44 [2024-09-20 13:10:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:10:27,555 INFO L225 Difference]: With dead ends: 134 [2024-09-20 13:10:27,555 INFO L226 Difference]: Without dead ends: 103 [2024-09-20 13:10:27,557 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=1025, Invalid=9277, Unknown=0, NotChecked=0, Total=10302 [2024-09-20 13:10:27,558 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 253 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-09-20 13:10:27,558 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 219 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2024-09-20 13:10:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-09-20 13:10:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2024-09-20 13:10:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 14 states have call successors, (14), 12 states have call predecessors, (14), 10 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-20 13:10:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2024-09-20 13:10:27,584 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 44 [2024-09-20 13:10:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:10:27,585 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2024-09-20 13:10:27,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 32 states have (on average 1.5) internal successors, (48), 37 states have internal predecessors, (48), 14 states have call successors, (16), 8 states have call predecessors, (16), 13 states have return successors, (13), 13 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-20 13:10:27,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:10:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2024-09-20 13:10:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-20 13:10:27,587 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:10:27,587 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:10:27,608 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-20 13:10:27,787 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:10:27,788 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:10:27,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:10:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1199750053, now seen corresponding path program 4 times [2024-09-20 13:10:27,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:10:27,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197784089] [2024-09-20 13:10:27,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:10:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:10:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:28,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:10:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:28,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:10:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:29,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:29,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:30,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:30,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:30,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:30,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 13:10:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:10:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-20 13:10:31,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:10:31,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197784089] [2024-09-20 13:10:31,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197784089] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:10:31,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570120097] [2024-09-20 13:10:31,080 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-20 13:10:31,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:10:31,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:10:31,082 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 13:10:31,083 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-20 13:10:31,314 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-20 13:10:31,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:10:31,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-09-20 13:10:31,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:10:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-20 13:10:32,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:11:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:11:36,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570120097] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:11:36,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:11:36,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 30] total 64 [2024-09-20 13:11:36,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985138377] [2024-09-20 13:11:36,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:11:36,405 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-20 13:11:36,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:11:36,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-20 13:11:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=3643, Unknown=15, NotChecked=0, Total=4032 [2024-09-20 13:11:36,408 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 64 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 55 states have internal predecessors, (64), 18 states have call successors, (20), 11 states have call predecessors, (20), 22 states have return successors, (22), 20 states have call predecessors, (22), 17 states have call successors, (22) [2024-09-20 13:11:41,876 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 [] [2024-09-20 13:11:45,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:11:49,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:11:53,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:11:57,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:12:01,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:12:05,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:12:09,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:12:13,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:12:17,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:13:02,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:13:06,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:13:10,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-20 13:13:14,080 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 []