./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:07:09,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:07:09,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:07:09,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:07:09,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:07:10,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:07:10,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:07:10,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:07:10,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:07:10,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:07:10,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:07:10,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:07:10,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:07:10,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:07:10,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:07:10,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:07:10,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:07:10,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:07:10,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:07:10,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:07:10,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:07:10,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:07:10,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:07:10,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:07:10,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:07:10,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:07:10,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:07:10,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:07:10,032 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:07:10,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:07:10,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:07:10,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:07:10,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:10,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:07:10,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:07:10,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:07:10,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:07:10,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:07:10,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:07:10,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:07:10,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:07:10,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:07:10,037 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2024-11-16 08:07:10,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:07:10,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:07:10,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:07:10,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:07:10,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:07:10,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2024-11-16 08:07:11,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:07:11,917 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:07:11,918 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2024-11-16 08:07:11,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87fcd798/e9da9ec3bb894d01a609e8a4606c70c6/FLAG14dcf4ce4 [2024-11-16 08:07:12,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87fcd798/e9da9ec3bb894d01a609e8a4606c70c6 [2024-11-16 08:07:12,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:07:12,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:07:12,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:12,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:07:12,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:07:12,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ccac2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12, skipping insertion in model container [2024-11-16 08:07:12,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:07:12,522 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2024-11-16 08:07:12,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:12,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:07:12,612 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2024-11-16 08:07:12,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:12,667 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:07:12,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12 WrapperNode [2024-11-16 08:07:12,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:12,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:12,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:07:12,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:07:12,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,716 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2024-11-16 08:07:12,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:12,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:07:12,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:07:12,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:07:12,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,755 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:07:12,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,771 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:07:12,780 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:07:12,780 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:07:12,780 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:07:12,782 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (1/1) ... [2024-11-16 08:07:12,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:12,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:12,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:07:12,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:07:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:07:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 08:07:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 08:07:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 08:07:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 08:07:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:07:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:07:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:07:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:07:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:07:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:07:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:07:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:07:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:07:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:07:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:07:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:07:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:07:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 08:07:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 08:07:12,962 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:07:12,967 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:07:13,280 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L217: do_read_c_~a~0#1 := ~a_t~0; [2024-11-16 08:07:13,280 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-16 08:07:13,281 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: assume !(1 == ~q_free~0); [2024-11-16 08:07:13,320 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-16 08:07:13,320 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:07:13,339 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:07:13,340 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:07:13,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:13 BoogieIcfgContainer [2024-11-16 08:07:13,340 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:07:13,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:07:13,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:07:13,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:07:13,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:07:12" (1/3) ... [2024-11-16 08:07:13,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acaa272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:13, skipping insertion in model container [2024-11-16 08:07:13,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:12" (2/3) ... [2024-11-16 08:07:13,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acaa272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:13, skipping insertion in model container [2024-11-16 08:07:13,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:13" (3/3) ... [2024-11-16 08:07:13,348 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2024-11-16 08:07:13,361 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:07:13,362 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:07:13,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:07:13,432 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5663d9ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:07:13,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:07:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 114 states have internal predecessors, (159), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 08:07:13,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:13,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:13,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:13,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:13,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1079491622, now seen corresponding path program 1 times [2024-11-16 08:07:13,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:13,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228817922] [2024-11-16 08:07:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:13,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:14,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:14,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228817922] [2024-11-16 08:07:14,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228817922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:14,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:14,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112326347] [2024-11-16 08:07:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:14,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:14,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:14,129 INFO L87 Difference]: Start difference. First operand has 136 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 114 states have internal predecessors, (159), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:14,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:14,885 INFO L93 Difference]: Finished difference Result 427 states and 619 transitions. [2024-11-16 08:07:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:07:14,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-16 08:07:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:14,915 INFO L225 Difference]: With dead ends: 427 [2024-11-16 08:07:14,915 INFO L226 Difference]: Without dead ends: 290 [2024-11-16 08:07:14,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:14,923 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 605 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:14,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 455 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:07:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-16 08:07:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 250. [2024-11-16 08:07:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 204 states have (on average 1.3725490196078431) internal successors, (280), 208 states have internal predecessors, (280), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2024-11-16 08:07:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2024-11-16 08:07:15,009 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 68 [2024-11-16 08:07:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:15,010 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2024-11-16 08:07:15,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2024-11-16 08:07:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:15,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:15,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:15,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:07:15,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:15,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1792930694, now seen corresponding path program 1 times [2024-11-16 08:07:15,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:15,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577905294] [2024-11-16 08:07:15,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:15,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:15,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577905294] [2024-11-16 08:07:15,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577905294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:15,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:15,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:15,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592575227] [2024-11-16 08:07:15,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:15,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:15,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:15,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:15,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:15,283 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:16,182 INFO L93 Difference]: Finished difference Result 685 states and 945 transitions. [2024-11-16 08:07:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:07:16,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-16 08:07:16,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:16,187 INFO L225 Difference]: With dead ends: 685 [2024-11-16 08:07:16,187 INFO L226 Difference]: Without dead ends: 451 [2024-11-16 08:07:16,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:07:16,190 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 377 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:16,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1021 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:07:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-16 08:07:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 374. [2024-11-16 08:07:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 306 states have (on average 1.3660130718954249) internal successors, (418), 312 states have internal predecessors, (418), 42 states have call successors, (42), 22 states have call predecessors, (42), 25 states have return successors, (53), 42 states have call predecessors, (53), 40 states have call successors, (53) [2024-11-16 08:07:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 513 transitions. [2024-11-16 08:07:16,242 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 513 transitions. Word has length 68 [2024-11-16 08:07:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:16,244 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 513 transitions. [2024-11-16 08:07:16,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 513 transitions. [2024-11-16 08:07:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:16,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:16,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:16,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:07:16,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:16,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1808643897, now seen corresponding path program 1 times [2024-11-16 08:07:16,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:16,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687805155] [2024-11-16 08:07:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:16,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:16,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:16,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687805155] [2024-11-16 08:07:16,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687805155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:16,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:16,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:07:16,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224211931] [2024-11-16 08:07:16,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:16,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:07:16,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:07:16,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:16,448 INFO L87 Difference]: Start difference. First operand 374 states and 513 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 08:07:18,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:18,064 INFO L93 Difference]: Finished difference Result 2089 states and 2880 transitions. [2024-11-16 08:07:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 08:07:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 68 [2024-11-16 08:07:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:18,076 INFO L225 Difference]: With dead ends: 2089 [2024-11-16 08:07:18,076 INFO L226 Difference]: Without dead ends: 1719 [2024-11-16 08:07:18,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:07:18,081 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1756 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:18,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 1230 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:07:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2024-11-16 08:07:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1546. [2024-11-16 08:07:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1273 states have (on average 1.3205027494108406) internal successors, (1681), 1294 states have internal predecessors, (1681), 152 states have call successors, (152), 105 states have call predecessors, (152), 120 states have return successors, (186), 148 states have call predecessors, (186), 150 states have call successors, (186) [2024-11-16 08:07:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2019 transitions. [2024-11-16 08:07:18,214 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2019 transitions. Word has length 68 [2024-11-16 08:07:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:18,215 INFO L471 AbstractCegarLoop]: Abstraction has 1546 states and 2019 transitions. [2024-11-16 08:07:18,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 08:07:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2019 transitions. [2024-11-16 08:07:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:07:18,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:18,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:18,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:07:18,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:18,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:18,219 INFO L85 PathProgramCache]: Analyzing trace with hash 868488397, now seen corresponding path program 1 times [2024-11-16 08:07:18,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:18,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684996026] [2024-11-16 08:07:18,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:18,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 08:07:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684996026] [2024-11-16 08:07:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684996026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:18,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:18,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912293075] [2024-11-16 08:07:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:18,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:18,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:18,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:18,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:18,378 INFO L87 Difference]: Start difference. First operand 1546 states and 2019 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:18,947 INFO L93 Difference]: Finished difference Result 3214 states and 4230 transitions. [2024-11-16 08:07:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-16 08:07:18,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:18,956 INFO L225 Difference]: With dead ends: 3214 [2024-11-16 08:07:18,957 INFO L226 Difference]: Without dead ends: 1678 [2024-11-16 08:07:18,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:07:18,965 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 131 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:18,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 715 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-16 08:07:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1586. [2024-11-16 08:07:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1305 states have (on average 1.3080459770114943) internal successors, (1707), 1326 states have internal predecessors, (1707), 152 states have call successors, (152), 105 states have call predecessors, (152), 128 states have return successors, (194), 156 states have call predecessors, (194), 150 states have call successors, (194) [2024-11-16 08:07:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2053 transitions. [2024-11-16 08:07:19,084 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2053 transitions. Word has length 69 [2024-11-16 08:07:19,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:19,084 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2053 transitions. [2024-11-16 08:07:19,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2053 transitions. [2024-11-16 08:07:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:07:19,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:19,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:19,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:07:19,090 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:19,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:19,090 INFO L85 PathProgramCache]: Analyzing trace with hash 992561644, now seen corresponding path program 1 times [2024-11-16 08:07:19,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:19,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321070472] [2024-11-16 08:07:19,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:19,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 08:07:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:19,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:19,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321070472] [2024-11-16 08:07:19,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321070472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:19,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:19,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:07:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66923054] [2024-11-16 08:07:19,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:19,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:07:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:07:19,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:19,247 INFO L87 Difference]: Start difference. First operand 1586 states and 2053 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 08:07:20,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:20,856 INFO L93 Difference]: Finished difference Result 5570 states and 7339 transitions. [2024-11-16 08:07:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 08:07:20,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69 [2024-11-16 08:07:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:20,867 INFO L225 Difference]: With dead ends: 5570 [2024-11-16 08:07:20,868 INFO L226 Difference]: Without dead ends: 1957 [2024-11-16 08:07:20,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:07:20,877 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1683 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:20,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 1464 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:07:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2024-11-16 08:07:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1772. [2024-11-16 08:07:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1419 states have (on average 1.274136715997181) internal successors, (1808), 1442 states have internal predecessors, (1808), 192 states have call successors, (192), 133 states have call predecessors, (192), 160 states have return successors, (240), 198 states have call predecessors, (240), 190 states have call successors, (240) [2024-11-16 08:07:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2240 transitions. [2024-11-16 08:07:21,023 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2240 transitions. Word has length 69 [2024-11-16 08:07:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:21,023 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2240 transitions. [2024-11-16 08:07:21,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 08:07:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2240 transitions. [2024-11-16 08:07:21,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:07:21,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:21,030 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:21,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:07:21,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:21,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash 406162856, now seen corresponding path program 1 times [2024-11-16 08:07:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939669761] [2024-11-16 08:07:21,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 08:07:21,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:21,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939669761] [2024-11-16 08:07:21,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939669761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:21,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:21,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:21,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109765441] [2024-11-16 08:07:21,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:21,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:21,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:21,170 INFO L87 Difference]: Start difference. First operand 1772 states and 2240 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:21,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:21,744 INFO L93 Difference]: Finished difference Result 3712 states and 4749 transitions. [2024-11-16 08:07:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:07:21,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2024-11-16 08:07:21,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:21,756 INFO L225 Difference]: With dead ends: 3712 [2024-11-16 08:07:21,756 INFO L226 Difference]: Without dead ends: 1950 [2024-11-16 08:07:21,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:21,764 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 128 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:21,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 642 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2024-11-16 08:07:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1832. [2024-11-16 08:07:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1467 states have (on average 1.2610770279481935) internal successors, (1850), 1490 states have internal predecessors, (1850), 192 states have call successors, (192), 133 states have call predecessors, (192), 172 states have return successors, (252), 210 states have call predecessors, (252), 190 states have call successors, (252) [2024-11-16 08:07:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2294 transitions. [2024-11-16 08:07:21,927 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2294 transitions. Word has length 102 [2024-11-16 08:07:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:21,928 INFO L471 AbstractCegarLoop]: Abstraction has 1832 states and 2294 transitions. [2024-11-16 08:07:21,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2294 transitions. [2024-11-16 08:07:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:07:21,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:21,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:21,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:07:21,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:21,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1710556585, now seen corresponding path program 1 times [2024-11-16 08:07:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25761817] [2024-11-16 08:07:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 08:07:22,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25761817] [2024-11-16 08:07:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25761817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:22,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:22,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:22,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945448563] [2024-11-16 08:07:22,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:22,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:22,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:22,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:22,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:22,128 INFO L87 Difference]: Start difference. First operand 1832 states and 2294 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:22,910 INFO L93 Difference]: Finished difference Result 3457 states and 4356 transitions. [2024-11-16 08:07:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:07:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 102 [2024-11-16 08:07:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:22,920 INFO L225 Difference]: With dead ends: 3457 [2024-11-16 08:07:22,920 INFO L226 Difference]: Without dead ends: 1890 [2024-11-16 08:07:22,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:07:22,924 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 391 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:22,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 623 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:07:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-16 08:07:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1594. [2024-11-16 08:07:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1282 states have (on average 1.2597503900156006) internal successors, (1615), 1300 states have internal predecessors, (1615), 164 states have call successors, (164), 114 states have call predecessors, (164), 147 states have return successors, (212), 180 states have call predecessors, (212), 162 states have call successors, (212) [2024-11-16 08:07:23,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 1991 transitions. [2024-11-16 08:07:23,043 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 1991 transitions. Word has length 102 [2024-11-16 08:07:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:23,043 INFO L471 AbstractCegarLoop]: Abstraction has 1594 states and 1991 transitions. [2024-11-16 08:07:23,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 1991 transitions. [2024-11-16 08:07:23,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:07:23,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:23,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:23,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:07:23,046 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:23,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:23,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1811468552, now seen corresponding path program 1 times [2024-11-16 08:07:23,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:23,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366273802] [2024-11-16 08:07:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:23,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:07:23,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:23,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366273802] [2024-11-16 08:07:23,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366273802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:23,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:23,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:23,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538469294] [2024-11-16 08:07:23,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:23,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:23,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:23,153 INFO L87 Difference]: Start difference. First operand 1594 states and 1991 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 08:07:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:23,745 INFO L93 Difference]: Finished difference Result 4973 states and 6330 transitions. [2024-11-16 08:07:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:07:23,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 102 [2024-11-16 08:07:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:23,765 INFO L225 Difference]: With dead ends: 4973 [2024-11-16 08:07:23,765 INFO L226 Difference]: Without dead ends: 3390 [2024-11-16 08:07:23,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:07:23,772 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 470 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:23,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 334 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-16 08:07:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3176. [2024-11-16 08:07:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 2544 states have (on average 1.240566037735849) internal successors, (3156), 2591 states have internal predecessors, (3156), 325 states have call successors, (325), 227 states have call predecessors, (325), 306 states have return successors, (495), 359 states have call predecessors, (495), 323 states have call successors, (495) [2024-11-16 08:07:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 3976 transitions. [2024-11-16 08:07:24,058 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 3976 transitions. Word has length 102 [2024-11-16 08:07:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:24,060 INFO L471 AbstractCegarLoop]: Abstraction has 3176 states and 3976 transitions. [2024-11-16 08:07:24,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 08:07:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 3976 transitions. [2024-11-16 08:07:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:07:24,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:24,062 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:24,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:07:24,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:24,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1369714057, now seen corresponding path program 1 times [2024-11-16 08:07:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:24,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824970340] [2024-11-16 08:07:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:24,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 08:07:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824970340] [2024-11-16 08:07:24,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824970340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:24,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:24,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:24,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108691157] [2024-11-16 08:07:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:24,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:24,129 INFO L87 Difference]: Start difference. First operand 3176 states and 3976 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:24,490 INFO L93 Difference]: Finished difference Result 4874 states and 6074 transitions. [2024-11-16 08:07:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:07:24,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 102 [2024-11-16 08:07:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:24,501 INFO L225 Difference]: With dead ends: 4874 [2024-11-16 08:07:24,502 INFO L226 Difference]: Without dead ends: 1709 [2024-11-16 08:07:24,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:24,509 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 258 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:24,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 287 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:24,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2024-11-16 08:07:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1594. [2024-11-16 08:07:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1282 states have (on average 1.2308892355694228) internal successors, (1578), 1300 states have internal predecessors, (1578), 164 states have call successors, (164), 114 states have call predecessors, (164), 147 states have return successors, (212), 180 states have call predecessors, (212), 162 states have call successors, (212) [2024-11-16 08:07:24,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 1954 transitions. [2024-11-16 08:07:24,626 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 1954 transitions. Word has length 102 [2024-11-16 08:07:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:24,626 INFO L471 AbstractCegarLoop]: Abstraction has 1594 states and 1954 transitions. [2024-11-16 08:07:24,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 1954 transitions. [2024-11-16 08:07:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:07:24,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:24,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:24,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:07:24,628 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:24,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:24,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1389505989, now seen corresponding path program 1 times [2024-11-16 08:07:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:24,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793108116] [2024-11-16 08:07:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:24,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:07:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 08:07:24,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:24,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793108116] [2024-11-16 08:07:24,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793108116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:24,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:24,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:24,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136101748] [2024-11-16 08:07:24,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:24,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:24,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:24,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:24,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:24,757 INFO L87 Difference]: Start difference. First operand 1594 states and 1954 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:25,931 INFO L93 Difference]: Finished difference Result 4156 states and 5181 transitions. [2024-11-16 08:07:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 08:07:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 103 [2024-11-16 08:07:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:25,944 INFO L225 Difference]: With dead ends: 4156 [2024-11-16 08:07:25,945 INFO L226 Difference]: Without dead ends: 2413 [2024-11-16 08:07:25,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2024-11-16 08:07:25,949 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1044 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:25,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 787 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:07:25,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2024-11-16 08:07:26,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2233. [2024-11-16 08:07:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1767 states have (on average 1.2099603848330505) internal successors, (2138), 1793 states have internal predecessors, (2138), 241 states have call successors, (241), 162 states have call predecessors, (241), 224 states have return successors, (343), 278 states have call predecessors, (343), 239 states have call successors, (343) [2024-11-16 08:07:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2722 transitions. [2024-11-16 08:07:26,127 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2722 transitions. Word has length 103 [2024-11-16 08:07:26,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:26,130 INFO L471 AbstractCegarLoop]: Abstraction has 2233 states and 2722 transitions. [2024-11-16 08:07:26,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2722 transitions. [2024-11-16 08:07:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 08:07:26,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:26,133 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:26,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:07:26,134 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:26,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:26,134 INFO L85 PathProgramCache]: Analyzing trace with hash 720736555, now seen corresponding path program 1 times [2024-11-16 08:07:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257479637] [2024-11-16 08:07:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:07:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:07:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:07:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 08:07:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:07:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:07:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:07:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 08:07:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-16 08:07:26,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257479637] [2024-11-16 08:07:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257479637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063758967] [2024-11-16 08:07:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:26,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:26,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:26,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:26,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:07:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:26,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 08:07:26,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:26,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063758967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:26,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:26,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 08:07:26,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391594553] [2024-11-16 08:07:26,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:26,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:26,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:26,664 INFO L87 Difference]: Start difference. First operand 2233 states and 2722 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 08:07:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:27,022 INFO L93 Difference]: Finished difference Result 6416 states and 7808 transitions. [2024-11-16 08:07:27,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:27,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2024-11-16 08:07:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:27,039 INFO L225 Difference]: With dead ends: 6416 [2024-11-16 08:07:27,040 INFO L226 Difference]: Without dead ends: 4277 [2024-11-16 08:07:27,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:27,045 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 64 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:27,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 293 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:27,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4277 states. [2024-11-16 08:07:27,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4277 to 4234. [2024-11-16 08:07:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 3355 states have (on average 1.1991058122205662) internal successors, (4023), 3404 states have internal predecessors, (4023), 448 states have call successors, (448), 323 states have call predecessors, (448), 430 states have return successors, (611), 507 states have call predecessors, (611), 446 states have call successors, (611) [2024-11-16 08:07:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 5082 transitions. [2024-11-16 08:07:27,396 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 5082 transitions. Word has length 178 [2024-11-16 08:07:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:27,397 INFO L471 AbstractCegarLoop]: Abstraction has 4234 states and 5082 transitions. [2024-11-16 08:07:27,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 08:07:27,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 5082 transitions. [2024-11-16 08:07:27,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:07:27,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:27,401 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:27,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:07:27,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 08:07:27,606 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:27,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:27,607 INFO L85 PathProgramCache]: Analyzing trace with hash -475106629, now seen corresponding path program 1 times [2024-11-16 08:07:27,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:27,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872714614] [2024-11-16 08:07:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:27,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:07:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:07:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:07:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 08:07:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 08:07:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:07:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 08:07:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:07:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:07:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-16 08:07:27,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:27,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872714614] [2024-11-16 08:07:27,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872714614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:27,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325793237] [2024-11-16 08:07:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:27,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:27,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:27,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:27,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:07:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:27,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-16 08:07:28,172 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:28,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325793237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:28,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:28,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 08:07:28,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24933867] [2024-11-16 08:07:28,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:28,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:28,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:28,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:28,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:28,174 INFO L87 Difference]: Start difference. First operand 4234 states and 5082 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 08:07:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:28,726 INFO L93 Difference]: Finished difference Result 12680 states and 15216 transitions. [2024-11-16 08:07:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 210 [2024-11-16 08:07:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:28,765 INFO L225 Difference]: With dead ends: 12680 [2024-11-16 08:07:28,765 INFO L226 Difference]: Without dead ends: 8457 [2024-11-16 08:07:28,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:28,777 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 55 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:28,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 291 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8457 states. [2024-11-16 08:07:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8457 to 8446. [2024-11-16 08:07:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 6695 states have (on average 1.1928304705003734) internal successors, (7986), 6791 states have internal predecessors, (7986), 890 states have call successors, (890), 645 states have call predecessors, (890), 860 states have return successors, (1218), 1010 states have call predecessors, (1218), 888 states have call successors, (1218) [2024-11-16 08:07:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 10094 transitions. [2024-11-16 08:07:29,442 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 10094 transitions. Word has length 210 [2024-11-16 08:07:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:29,443 INFO L471 AbstractCegarLoop]: Abstraction has 8446 states and 10094 transitions. [2024-11-16 08:07:29,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 08:07:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 10094 transitions. [2024-11-16 08:07:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:07:29,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:29,448 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:29,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 08:07:29,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 08:07:29,649 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:29,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:29,649 INFO L85 PathProgramCache]: Analyzing trace with hash -715646758, now seen corresponding path program 1 times [2024-11-16 08:07:29,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:29,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026034499] [2024-11-16 08:07:29,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:29,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:07:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:07:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:07:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:07:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:07:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 08:07:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 08:07:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:07:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 08:07:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:07:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:07:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-16 08:07:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026034499] [2024-11-16 08:07:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026034499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789297150] [2024-11-16 08:07:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:29,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:29,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:29,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:07:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:30,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-16 08:07:30,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789297150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:30,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:30,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 08:07:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925063283] [2024-11-16 08:07:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:30,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:30,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:30,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:30,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:30,295 INFO L87 Difference]: Start difference. First operand 8446 states and 10094 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 08:07:30,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:30,853 INFO L93 Difference]: Finished difference Result 15412 states and 18746 transitions. [2024-11-16 08:07:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:30,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 210 [2024-11-16 08:07:30,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:30,864 INFO L225 Difference]: With dead ends: 15412 [2024-11-16 08:07:30,864 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 08:07:30,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:30,893 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:30,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 138 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 08:07:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 08:07:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:07:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 08:07:30,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2024-11-16 08:07:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:30,901 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 08:07:30,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 08:07:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 08:07:30,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 08:07:30,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 08:07:30,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:07:31,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:31,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:31,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.