./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.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 0e49baa02682605d5c6b8a86e9e1d38b2cd4076796b3122e76d3b43b5274a0df --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 23:00:11,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 23:00:11,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 23:00:11,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 23:00:11,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 23:00:11,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 23:00:11,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 23:00:11,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 23:00:11,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 23:00:11,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 23:00:11,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 23:00:11,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 23:00:11,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 23:00:11,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 23:00:11,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 23:00:11,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 23:00:11,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 23:00:11,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 23:00:11,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 23:00:11,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 23:00:11,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 23:00:11,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 23:00:11,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 23:00:11,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 23:00:11,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 23:00:11,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 23:00:11,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 23:00:11,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 23:00:11,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 23:00:11,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 23:00:11,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 23:00:11,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 23:00:11,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:00:11,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 23:00:11,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 23:00:11,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 23:00:11,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 23:00:11,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 23:00:11,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 23:00:11,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 23:00:11,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 23:00:11,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 23:00:11,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e49baa02682605d5c6b8a86e9e1d38b2cd4076796b3122e76d3b43b5274a0df [2024-11-11 23:00:12,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 23:00:12,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 23:00:12,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 23:00:12,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 23:00:12,198 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 23:00:12,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c [2024-11-11 23:00:13,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 23:00:13,889 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 23:00:13,890 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c [2024-11-11 23:00:13,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166481be8/de5acfd00ce2431e8c229e040db1086d/FLAG955c56270 [2024-11-11 23:00:13,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166481be8/de5acfd00ce2431e8c229e040db1086d [2024-11-11 23:00:13,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 23:00:13,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 23:00:13,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 23:00:13,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 23:00:13,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 23:00:13,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:00:13" (1/1) ... [2024-11-11 23:00:13,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b463618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:13, skipping insertion in model container [2024-11-11 23:00:13,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:00:13" (1/1) ... [2024-11-11 23:00:14,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 23:00:14,169 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/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c[911,924] [2024-11-11 23:00:14,241 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/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c[8416,8429] [2024-11-11 23:00:14,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:00:14,349 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 23:00:14,360 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/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c[911,924] [2024-11-11 23:00:14,390 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/combinations/pc_sfifo_3.cil+token_ring.13.cil-1.c[8416,8429] [2024-11-11 23:00:14,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:00:14,471 INFO L204 MainTranslator]: Completed translation [2024-11-11 23:00:14,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14 WrapperNode [2024-11-11 23:00:14,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 23:00:14,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 23:00:14,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 23:00:14,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 23:00:14,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,548 INFO L138 Inliner]: procedures = 81, calls = 101, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1172 [2024-11-11 23:00:14,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 23:00:14,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 23:00:14,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 23:00:14,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 23:00:14,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,592 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]. [2024-11-11 23:00:14,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 23:00:14,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 23:00:14,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 23:00:14,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 23:00:14,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (1/1) ... [2024-11-11 23:00:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:00:14,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:00:14,708 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) [2024-11-11 23:00:14,714 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 [2024-11-11 23:00:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 23:00:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 23:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 23:00:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 23:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 23:00:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 23:00:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 23:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 23:00:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 23:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 23:00:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 23:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 23:00:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 23:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 23:00:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 23:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 23:00:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 23:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 23:00:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 23:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 23:00:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 23:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 23:00:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 23:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 23:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 23:00:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 23:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 23:00:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 23:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 23:00:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 23:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 23:00:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 23:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 23:00:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 23:00:14,939 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 23:00:14,941 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 23:00:15,873 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-11 23:00:15,874 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-11 23:00:16,179 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-11 23:00:16,179 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 23:00:16,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 23:00:16,215 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-11 23:00:16,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:00:16 BoogieIcfgContainer [2024-11-11 23:00:16,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 23:00:16,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 23:00:16,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 23:00:16,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 23:00:16,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:00:13" (1/3) ... [2024-11-11 23:00:16,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0eb715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:00:16, skipping insertion in model container [2024-11-11 23:00:16,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:14" (2/3) ... [2024-11-11 23:00:16,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0eb715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:00:16, skipping insertion in model container [2024-11-11 23:00:16,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:00:16" (3/3) ... [2024-11-11 23:00:16,227 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.13.cil-1.c [2024-11-11 23:00:16,243 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 23:00:16,243 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 23:00:16,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 23:00:16,333 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;@3d456325, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 23:00:16,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 23:00:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 546 states, 483 states have (on average 1.6273291925465838) internal successors, (786), 491 states have internal predecessors, (786), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-11 23:00:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 23:00:16,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:16,358 INFO L218 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] [2024-11-11 23:00:16,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:16,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:16,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1732254382, now seen corresponding path program 1 times [2024-11-11 23:00:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:16,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541144714] [2024-11-11 23:00:16,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:16,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 23:00:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 23:00:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:16,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 23:00:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:17,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:17,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541144714] [2024-11-11 23:00:17,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541144714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:17,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:17,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 23:00:17,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743474614] [2024-11-11 23:00:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:17,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 23:00:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 23:00:17,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:17,044 INFO L87 Difference]: Start difference. First operand has 546 states, 483 states have (on average 1.6273291925465838) internal successors, (786), 491 states have internal predecessors, (786), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-11 23:00:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:18,696 INFO L93 Difference]: Finished difference Result 1213 states and 1937 transitions. [2024-11-11 23:00:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:18,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 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 65 [2024-11-11 23:00:18,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:18,717 INFO L225 Difference]: With dead ends: 1213 [2024-11-11 23:00:18,718 INFO L226 Difference]: Without dead ends: 686 [2024-11-11 23:00:18,724 INFO L434 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 [2024-11-11 23:00:18,727 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 1733 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:18,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 2076 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 23:00:18,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-11 23:00:18,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 647. [2024-11-11 23:00:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 565 states have (on average 1.5238938053097346) internal successors, (861), 572 states have internal predecessors, (861), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (59), 55 states have call predecessors, (59), 54 states have call successors, (59) [2024-11-11 23:00:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 978 transitions. [2024-11-11 23:00:18,825 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 978 transitions. Word has length 65 [2024-11-11 23:00:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:18,826 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 978 transitions. [2024-11-11 23:00:18,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-11 23:00:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 978 transitions. [2024-11-11 23:00:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 23:00:18,831 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:18,831 INFO L218 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] [2024-11-11 23:00:18,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 23:00:18,832 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:18,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:18,832 INFO L85 PathProgramCache]: Analyzing trace with hash -53365742, now seen corresponding path program 1 times [2024-11-11 23:00:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:18,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227790081] [2024-11-11 23:00:18,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:18,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 23:00:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 23:00:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 23:00:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:18,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227790081] [2024-11-11 23:00:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227790081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:18,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:18,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:18,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409539174] [2024-11-11 23:00:18,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:18,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:18,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:18,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:18,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:18,989 INFO L87 Difference]: Start difference. First operand 647 states and 978 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:20,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:20,183 INFO L93 Difference]: Finished difference Result 1115 states and 1630 transitions. [2024-11-11 23:00:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 23:00:20,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 23:00:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:20,189 INFO L225 Difference]: With dead ends: 1115 [2024-11-11 23:00:20,190 INFO L226 Difference]: Without dead ends: 906 [2024-11-11 23:00:20,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-11 23:00:20,192 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 2067 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:20,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 1798 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 23:00:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-11 23:00:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 832. [2024-11-11 23:00:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 714 states have (on average 1.4915966386554622) internal successors, (1065), 723 states have internal predecessors, (1065), 78 states have call successors, (78), 36 states have call predecessors, (78), 38 states have return successors, (82), 75 states have call predecessors, (82), 74 states have call successors, (82) [2024-11-11 23:00:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1225 transitions. [2024-11-11 23:00:20,249 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1225 transitions. Word has length 65 [2024-11-11 23:00:20,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:20,250 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1225 transitions. [2024-11-11 23:00:20,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1225 transitions. [2024-11-11 23:00:20,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 23:00:20,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:20,253 INFO L218 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] [2024-11-11 23:00:20,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 23:00:20,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:20,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash 86637519, now seen corresponding path program 1 times [2024-11-11 23:00:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:20,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515197830] [2024-11-11 23:00:20,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 23:00:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 23:00:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:20,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515197830] [2024-11-11 23:00:20,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515197830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:20,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:20,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:20,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232099001] [2024-11-11 23:00:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:20,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:20,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:20,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:20,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:20,483 INFO L87 Difference]: Start difference. First operand 832 states and 1225 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-11 23:00:21,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:21,891 INFO L93 Difference]: Finished difference Result 1296 states and 1866 transitions. [2024-11-11 23:00:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 23:00:21,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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 66 [2024-11-11 23:00:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:21,897 INFO L225 Difference]: With dead ends: 1296 [2024-11-11 23:00:21,898 INFO L226 Difference]: Without dead ends: 902 [2024-11-11 23:00:21,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 23:00:21,900 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 707 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:21,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 3321 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 23:00:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-11 23:00:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 842. [2024-11-11 23:00:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 722 states have (on average 1.4833795013850415) internal successors, (1071), 731 states have internal predecessors, (1071), 78 states have call successors, (78), 36 states have call predecessors, (78), 40 states have return successors, (84), 77 states have call predecessors, (84), 74 states have call successors, (84) [2024-11-11 23:00:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1233 transitions. [2024-11-11 23:00:21,958 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1233 transitions. Word has length 66 [2024-11-11 23:00:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:21,959 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1233 transitions. [2024-11-11 23:00:21,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-11 23:00:21,959 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1233 transitions. [2024-11-11 23:00:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 23:00:21,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:21,961 INFO L218 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] [2024-11-11 23:00:21,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 23:00:21,962 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:21,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash -942721779, now seen corresponding path program 1 times [2024-11-11 23:00:21,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:21,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326866465] [2024-11-11 23:00:21,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:21,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 23:00:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 23:00:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326866465] [2024-11-11 23:00:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326866465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:22,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:22,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60224626] [2024-11-11 23:00:22,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:22,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:22,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:22,240 INFO L87 Difference]: Start difference. First operand 842 states and 1233 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:24,524 INFO L93 Difference]: Finished difference Result 2382 states and 3397 transitions. [2024-11-11 23:00:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 23:00:24,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-11 23:00:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:24,532 INFO L225 Difference]: With dead ends: 2382 [2024-11-11 23:00:24,532 INFO L226 Difference]: Without dead ends: 1120 [2024-11-11 23:00:24,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 23:00:24,537 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 2723 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:24,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 3134 Invalid, 2952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 23:00:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-11 23:00:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 982. [2024-11-11 23:00:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 825 states have (on average 1.450909090909091) internal successors, (1197), 836 states have internal predecessors, (1197), 98 states have call successors, (98), 50 states have call predecessors, (98), 57 states have return successors, (115), 98 states have call predecessors, (115), 94 states have call successors, (115) [2024-11-11 23:00:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1410 transitions. [2024-11-11 23:00:24,600 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1410 transitions. Word has length 66 [2024-11-11 23:00:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:24,601 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1410 transitions. [2024-11-11 23:00:24,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1410 transitions. [2024-11-11 23:00:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 23:00:24,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:24,603 INFO L218 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] [2024-11-11 23:00:24,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 23:00:24,603 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:24,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:24,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2049773155, now seen corresponding path program 1 times [2024-11-11 23:00:24,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:24,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297183742] [2024-11-11 23:00:24,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:24,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 23:00:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 23:00:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:24,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297183742] [2024-11-11 23:00:24,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297183742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:24,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:24,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:24,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457424812] [2024-11-11 23:00:24,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:24,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:24,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:24,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:24,782 INFO L87 Difference]: Start difference. First operand 982 states and 1410 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:26,136 INFO L93 Difference]: Finished difference Result 1901 states and 2664 transitions. [2024-11-11 23:00:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 23:00:26,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-11 23:00:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:26,140 INFO L225 Difference]: With dead ends: 1901 [2024-11-11 23:00:26,140 INFO L226 Difference]: Without dead ends: 424 [2024-11-11 23:00:26,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-11 23:00:26,144 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 1658 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:26,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2788 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 23:00:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-11 23:00:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2024-11-11 23:00:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 388 states have (on average 1.5644329896907216) internal successors, (607), 390 states have internal predecessors, (607), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 663 transitions. [2024-11-11 23:00:26,159 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 663 transitions. Word has length 67 [2024-11-11 23:00:26,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:26,159 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 663 transitions. [2024-11-11 23:00:26,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:26,160 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 663 transitions. [2024-11-11 23:00:26,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:26,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:26,162 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:26,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 23:00:26,162 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:26,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:26,163 INFO L85 PathProgramCache]: Analyzing trace with hash -197874790, now seen corresponding path program 1 times [2024-11-11 23:00:26,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:26,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880825850] [2024-11-11 23:00:26,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:26,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:26,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:26,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880825850] [2024-11-11 23:00:26,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880825850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:26,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:26,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:00:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749164449] [2024-11-11 23:00:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:26,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:00:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:00:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:00:26,414 INFO L87 Difference]: Start difference. First operand 424 states and 663 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:28,145 INFO L93 Difference]: Finished difference Result 989 states and 1571 transitions. [2024-11-11 23:00:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:00:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:28,149 INFO L225 Difference]: With dead ends: 989 [2024-11-11 23:00:28,149 INFO L226 Difference]: Without dead ends: 577 [2024-11-11 23:00:28,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:28,151 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 1132 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:28,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 855 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 23:00:28,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-11 23:00:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 424. [2024-11-11 23:00:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 388 states have (on average 1.5618556701030928) internal successors, (606), 390 states have internal predecessors, (606), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 662 transitions. [2024-11-11 23:00:28,179 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 662 transitions. Word has length 190 [2024-11-11 23:00:28,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:28,179 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 662 transitions. [2024-11-11 23:00:28,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 662 transitions. [2024-11-11 23:00:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:28,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:28,182 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:28,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 23:00:28,182 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1797023848, now seen corresponding path program 1 times [2024-11-11 23:00:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187814759] [2024-11-11 23:00:28,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:28,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:28,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187814759] [2024-11-11 23:00:28,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187814759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:28,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:28,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:00:28,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346600431] [2024-11-11 23:00:28,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:28,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:00:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:28,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:00:28,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:00:28,433 INFO L87 Difference]: Start difference. First operand 424 states and 662 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:29,961 INFO L93 Difference]: Finished difference Result 981 states and 1554 transitions. [2024-11-11 23:00:29,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:00:29,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:29,965 INFO L225 Difference]: With dead ends: 981 [2024-11-11 23:00:29,965 INFO L226 Difference]: Without dead ends: 577 [2024-11-11 23:00:29,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:29,967 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 1123 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:29,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 853 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 23:00:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-11 23:00:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 424. [2024-11-11 23:00:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 388 states have (on average 1.559278350515464) internal successors, (605), 390 states have internal predecessors, (605), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 661 transitions. [2024-11-11 23:00:29,998 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 661 transitions. Word has length 190 [2024-11-11 23:00:29,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:29,999 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 661 transitions. [2024-11-11 23:00:29,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 661 transitions. [2024-11-11 23:00:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:30,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:30,002 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:30,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 23:00:30,002 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:30,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:30,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1887084138, now seen corresponding path program 1 times [2024-11-11 23:00:30,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:30,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361807739] [2024-11-11 23:00:30,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:30,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:30,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361807739] [2024-11-11 23:00:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361807739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:00:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484267741] [2024-11-11 23:00:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:00:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:00:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:00:30,307 INFO L87 Difference]: Start difference. First operand 424 states and 661 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:33,109 INFO L93 Difference]: Finished difference Result 1554 states and 2480 transitions. [2024-11-11 23:00:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 23:00:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:33,116 INFO L225 Difference]: With dead ends: 1554 [2024-11-11 23:00:33,117 INFO L226 Difference]: Without dead ends: 1152 [2024-11-11 23:00:33,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 23:00:33,119 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 1705 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:33,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 1460 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 23:00:33,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2024-11-11 23:00:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 845. [2024-11-11 23:00:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 780 states have (on average 1.5717948717948718) internal successors, (1226), 783 states have internal predecessors, (1226), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-11 23:00:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1329 transitions. [2024-11-11 23:00:33,197 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1329 transitions. Word has length 190 [2024-11-11 23:00:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:33,198 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1329 transitions. [2024-11-11 23:00:33,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:33,198 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1329 transitions. [2024-11-11 23:00:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:33,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:33,201 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:33,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 23:00:33,201 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:33,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 560856722, now seen corresponding path program 1 times [2024-11-11 23:00:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:33,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080982677] [2024-11-11 23:00:33,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:33,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:33,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:33,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080982677] [2024-11-11 23:00:33,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080982677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:33,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:33,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265191709] [2024-11-11 23:00:33,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:33,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:33,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:33,565 INFO L87 Difference]: Start difference. First operand 845 states and 1329 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:37,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:37,495 INFO L93 Difference]: Finished difference Result 2570 states and 4111 transitions. [2024-11-11 23:00:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:37,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:37,503 INFO L225 Difference]: With dead ends: 2570 [2024-11-11 23:00:37,504 INFO L226 Difference]: Without dead ends: 1747 [2024-11-11 23:00:37,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:37,506 INFO L435 NwaCegarLoop]: 637 mSDtfsCounter, 1742 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 3927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:37,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 2847 Invalid, 3927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-11 23:00:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-11-11 23:00:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1237. [2024-11-11 23:00:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1143 states have (on average 1.5651793525809274) internal successors, (1789), 1147 states have internal predecessors, (1789), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-11 23:00:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1938 transitions. [2024-11-11 23:00:37,585 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1938 transitions. Word has length 190 [2024-11-11 23:00:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:37,586 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 1938 transitions. [2024-11-11 23:00:37,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1938 transitions. [2024-11-11 23:00:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:37,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:37,588 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:37,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 23:00:37,589 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:37,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1362393708, now seen corresponding path program 1 times [2024-11-11 23:00:37,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:37,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105105557] [2024-11-11 23:00:37,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:37,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:37,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105105557] [2024-11-11 23:00:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105105557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:37,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:37,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:37,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983441681] [2024-11-11 23:00:37,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:37,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:37,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:37,948 INFO L87 Difference]: Start difference. First operand 1237 states and 1938 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:41,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:41,460 INFO L93 Difference]: Finished difference Result 4069 states and 6496 transitions. [2024-11-11 23:00:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:41,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:41,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:41,476 INFO L225 Difference]: With dead ends: 4069 [2024-11-11 23:00:41,476 INFO L226 Difference]: Without dead ends: 2854 [2024-11-11 23:00:41,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:41,480 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1864 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1884 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:41,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1884 Valid, 1802 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 23:00:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2024-11-11 23:00:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2022. [2024-11-11 23:00:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1870 states have (on average 1.5593582887700534) internal successors, (2916), 1876 states have internal predecessors, (2916), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-11 23:00:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 3161 transitions. [2024-11-11 23:00:41,630 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 3161 transitions. Word has length 190 [2024-11-11 23:00:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:41,631 INFO L471 AbstractCegarLoop]: Abstraction has 2022 states and 3161 transitions. [2024-11-11 23:00:41,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 3161 transitions. [2024-11-11 23:00:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:41,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:41,634 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:41,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 23:00:41,634 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:41,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:41,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1207965266, now seen corresponding path program 1 times [2024-11-11 23:00:41,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:41,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321003868] [2024-11-11 23:00:41,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:41,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321003868] [2024-11-11 23:00:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321003868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:41,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979967649] [2024-11-11 23:00:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:41,948 INFO L87 Difference]: Start difference. First operand 2022 states and 3161 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:45,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:45,730 INFO L93 Difference]: Finished difference Result 6954 states and 11055 transitions. [2024-11-11 23:00:45,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:45,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:45,753 INFO L225 Difference]: With dead ends: 6954 [2024-11-11 23:00:45,753 INFO L226 Difference]: Without dead ends: 4954 [2024-11-11 23:00:45,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:45,761 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1734 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:45,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 2845 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 23:00:45,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2024-11-11 23:00:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 3593. [2024-11-11 23:00:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 3325 states have (on average 1.5548872180451128) internal successors, (5170), 3335 states have internal predecessors, (5170), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-11 23:00:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5613 transitions. [2024-11-11 23:00:45,997 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5613 transitions. Word has length 190 [2024-11-11 23:00:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:45,998 INFO L471 AbstractCegarLoop]: Abstraction has 3593 states and 5613 transitions. [2024-11-11 23:00:45,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5613 transitions. [2024-11-11 23:00:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:46,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:46,001 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:46,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 23:00:46,002 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:46,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1706522068, now seen corresponding path program 1 times [2024-11-11 23:00:46,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:46,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317938608] [2024-11-11 23:00:46,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:46,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:46,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317938608] [2024-11-11 23:00:46,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317938608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:46,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:46,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630476300] [2024-11-11 23:00:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:46,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:46,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:46,325 INFO L87 Difference]: Start difference. First operand 3593 states and 5613 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:50,295 INFO L93 Difference]: Finished difference Result 12723 states and 20189 transitions. [2024-11-11 23:00:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:50,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:50,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:50,332 INFO L225 Difference]: With dead ends: 12723 [2024-11-11 23:00:50,333 INFO L226 Difference]: Without dead ends: 9152 [2024-11-11 23:00:50,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:50,346 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1736 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:50,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 2845 Invalid, 3909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3840 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 23:00:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9152 states. [2024-11-11 23:00:50,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9152 to 6740. [2024-11-11 23:00:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6740 states, 6240 states have (on average 1.551923076923077) internal successors, (9684), 6258 states have internal predecessors, (9684), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-11 23:00:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6740 states to 6740 states and 10541 transitions. [2024-11-11 23:00:50,849 INFO L78 Accepts]: Start accepts. Automaton has 6740 states and 10541 transitions. Word has length 190 [2024-11-11 23:00:50,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:50,849 INFO L471 AbstractCegarLoop]: Abstraction has 6740 states and 10541 transitions. [2024-11-11 23:00:50,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6740 states and 10541 transitions. [2024-11-11 23:00:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:50,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:50,856 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:50,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 23:00:50,856 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:50,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:50,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2018173422, now seen corresponding path program 1 times [2024-11-11 23:00:50,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:50,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977142885] [2024-11-11 23:00:50,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:50,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:51,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:51,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:51,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:51,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:51,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977142885] [2024-11-11 23:00:51,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977142885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:51,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:51,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644184679] [2024-11-11 23:00:51,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:51,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:51,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:51,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:51,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:51,174 INFO L87 Difference]: Start difference. First operand 6740 states and 10541 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:55,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:55,381 INFO L93 Difference]: Finished difference Result 24245 states and 38487 transitions. [2024-11-11 23:00:55,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:55,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:55,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:55,446 INFO L225 Difference]: With dead ends: 24245 [2024-11-11 23:00:55,446 INFO L226 Difference]: Without dead ends: 17527 [2024-11-11 23:00:55,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:55,475 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1732 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3812 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:55,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 2845 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3812 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 23:00:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17527 states. [2024-11-11 23:00:56,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17527 to 13064. [2024-11-11 23:00:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13064 states, 12100 states have (on average 1.5507438016528925) internal successors, (18764), 12134 states have internal predecessors, (18764), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-11 23:00:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13064 states to 13064 states and 20503 transitions. [2024-11-11 23:00:56,501 INFO L78 Accepts]: Start accepts. Automaton has 13064 states and 20503 transitions. Word has length 190 [2024-11-11 23:00:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:56,502 INFO L471 AbstractCegarLoop]: Abstraction has 13064 states and 20503 transitions. [2024-11-11 23:00:56,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13064 states and 20503 transitions. [2024-11-11 23:00:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:56,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:56,513 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:56,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 23:00:56,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:56,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1490795984, now seen corresponding path program 1 times [2024-11-11 23:00:56,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:56,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764775787] [2024-11-11 23:00:56,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:56,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:56,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:56,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764775787] [2024-11-11 23:00:56,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764775787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:56,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:56,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041027075] [2024-11-11 23:00:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:56,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:56,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:56,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:56,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:56,870 INFO L87 Difference]: Start difference. First operand 13064 states and 20503 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:01,795 INFO L93 Difference]: Finished difference Result 47323 states and 75339 transitions. [2024-11-11 23:01:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:01,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:02,023 INFO L225 Difference]: With dead ends: 47323 [2024-11-11 23:01:02,024 INFO L226 Difference]: Without dead ends: 34281 [2024-11-11 23:01:02,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:02,079 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1731 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:02,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 2845 Invalid, 3868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 23:01:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34281 states. [2024-11-11 23:01:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34281 to 25741. [2024-11-11 23:01:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25741 states, 23849 states have (on average 1.5500020965239634) internal successors, (36966), 23915 states have internal predecessors, (36966), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-11 23:01:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25741 states to 25741 states and 40631 transitions. [2024-11-11 23:01:03,857 INFO L78 Accepts]: Start accepts. Automaton has 25741 states and 40631 transitions. Word has length 190 [2024-11-11 23:01:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:03,858 INFO L471 AbstractCegarLoop]: Abstraction has 25741 states and 40631 transitions. [2024-11-11 23:01:03,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 25741 states and 40631 transitions. [2024-11-11 23:01:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:03,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:03,876 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:03,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 23:01:03,878 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:03,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2136789422, now seen corresponding path program 1 times [2024-11-11 23:01:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544099176] [2024-11-11 23:01:03,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:03,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:04,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:04,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544099176] [2024-11-11 23:01:04,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544099176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:04,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:04,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:04,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732474056] [2024-11-11 23:01:04,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:04,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:04,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:04,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:04,393 INFO L87 Difference]: Start difference. First operand 25741 states and 40631 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:11,131 INFO L93 Difference]: Finished difference Result 93478 states and 149641 transitions. [2024-11-11 23:01:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:11,375 INFO L225 Difference]: With dead ends: 93478 [2024-11-11 23:01:11,376 INFO L226 Difference]: Without dead ends: 67759 [2024-11-11 23:01:11,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:11,455 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1730 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 3786 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:11,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 2845 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3786 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 23:01:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67759 states. [2024-11-11 23:01:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67759 to 51158. [2024-11-11 23:01:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51158 states, 47410 states have (on average 1.5495465091752796) internal successors, (73464), 47540 states have internal predecessors, (73464), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 23:01:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51158 states to 51158 states and 81467 transitions. [2024-11-11 23:01:15,320 INFO L78 Accepts]: Start accepts. Automaton has 51158 states and 81467 transitions. Word has length 190 [2024-11-11 23:01:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:15,321 INFO L471 AbstractCegarLoop]: Abstraction has 51158 states and 81467 transitions. [2024-11-11 23:01:15,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51158 states and 81467 transitions. [2024-11-11 23:01:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:15,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:15,347 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:15,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 23:01:15,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:15,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:15,348 INFO L85 PathProgramCache]: Analyzing trace with hash -37050992, now seen corresponding path program 1 times [2024-11-11 23:01:15,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:15,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095425282] [2024-11-11 23:01:15,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:15,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:15,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095425282] [2024-11-11 23:01:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095425282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:15,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:15,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:15,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690484071] [2024-11-11 23:01:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:15,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:15,625 INFO L87 Difference]: Start difference. First operand 51158 states and 81467 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:21,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:21,020 INFO L93 Difference]: Finished difference Result 120056 states and 194804 transitions. [2024-11-11 23:01:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 23:01:21,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:21,473 INFO L225 Difference]: With dead ends: 120056 [2024-11-11 23:01:21,473 INFO L226 Difference]: Without dead ends: 68920 [2024-11-11 23:01:21,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 23:01:21,592 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 1253 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:21,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1431 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 23:01:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68920 states. [2024-11-11 23:01:24,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68920 to 51158. [2024-11-11 23:01:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51158 states, 47410 states have (on average 1.5468255642269564) internal successors, (73335), 47540 states have internal predecessors, (73335), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 23:01:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51158 states to 51158 states and 81338 transitions. [2024-11-11 23:01:25,418 INFO L78 Accepts]: Start accepts. Automaton has 51158 states and 81338 transitions. Word has length 190 [2024-11-11 23:01:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:25,419 INFO L471 AbstractCegarLoop]: Abstraction has 51158 states and 81338 transitions. [2024-11-11 23:01:25,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 51158 states and 81338 transitions. [2024-11-11 23:01:25,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:25,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:25,453 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:25,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 23:01:25,453 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:25,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:25,454 INFO L85 PathProgramCache]: Analyzing trace with hash 307777170, now seen corresponding path program 1 times [2024-11-11 23:01:25,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:25,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295962548] [2024-11-11 23:01:25,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:25,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:25,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295962548] [2024-11-11 23:01:25,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295962548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:25,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:25,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125692997] [2024-11-11 23:01:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:25,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:25,813 INFO L87 Difference]: Start difference. First operand 51158 states and 81338 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)