./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af1a65b4dba99a03062f9c0ef0e7df0ff9812521932f446bc475a13832d55c02 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:59:30,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:59:30,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:59:30,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:59:30,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:59:30,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:59:30,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:59:30,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:59:30,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:59:30,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:59:30,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:59:30,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:59:30,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:59:30,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:59:30,855 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:59:30,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:59:30,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:59:30,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:59:30,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:59:30,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:59:30,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:59:30,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:59:30,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:59:30,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:59:30,858 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:59:30,858 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:59:30,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:59:30,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:59:30,859 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:59:30,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:59:30,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:59:30,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:59:30,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:59:30,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:59:30,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:59:30,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:59:30,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:59:30,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:59:30,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:59:30,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:59:30,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:59:30,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:59:30,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af1a65b4dba99a03062f9c0ef0e7df0ff9812521932f446bc475a13832d55c02 [2024-11-16 09:59:31,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:59:31,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:59:31,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:59:31,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:59:31,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:59:31,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-16 09:59:32,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:59:32,672 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:59:32,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-16 09:59:32,689 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be1cf03ab/77a53d55b6894ab7aecb37d353d81e90/FLAG278d00ec9 [2024-11-16 09:59:32,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be1cf03ab/77a53d55b6894ab7aecb37d353d81e90 [2024-11-16 09:59:33,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:59:33,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:59:33,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:59:33,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:59:33,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:59:33,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:59:32" (1/1) ... [2024-11-16 09:59:33,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e2317e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33, skipping insertion in model container [2024-11-16 09:59:33,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:59:32" (1/1) ... [2024-11-16 09:59:33,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:59:33,192 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.15.cil.c[911,924] [2024-11-16 09:59:33,252 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.15.cil.c[8416,8429] [2024-11-16 09:59:33,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:59:33,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:59:33,393 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.15.cil.c[911,924] [2024-11-16 09:59:33,414 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.15.cil.c[8416,8429] [2024-11-16 09:59:33,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:59:33,484 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:59:33,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33 WrapperNode [2024-11-16 09:59:33,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:59:33,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:59:33,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:59:33,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:59:33,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,544 INFO L138 Inliner]: procedures = 81, calls = 101, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1150 [2024-11-16 09:59:33,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:59:33,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:59:33,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:59:33,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:59:33,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,585 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:59:33,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,597 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:59:33,623 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:59:33,623 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:59:33,624 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:59:33,625 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (1/1) ... [2024-11-16 09:59:33,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:59:33,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:59:33,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:59:33,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:59:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:59:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:59:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:59:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:59:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:59:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:59:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:59:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:59:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:59:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:59:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:59:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:59:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:59:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:59:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:59:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:59:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:59:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:59:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:59:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:59:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:59:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:59:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:59:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:59:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:59:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:59:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:59:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-16 09:59:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-16 09:59:33,885 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:59:33,887 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:59:34,569 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-16 09:59:34,570 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-16 09:59:34,570 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1 == ~q_free~0); [2024-11-16 09:59:34,772 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-16 09:59:34,772 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:59:34,802 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:59:34,802 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:59:34,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:59:34 BoogieIcfgContainer [2024-11-16 09:59:34,803 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:59:34,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:59:34,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:59:34,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:59:34,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:59:32" (1/3) ... [2024-11-16 09:59:34,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8f5311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:59:34, skipping insertion in model container [2024-11-16 09:59:34,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:59:33" (2/3) ... [2024-11-16 09:59:34,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8f5311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:59:34, skipping insertion in model container [2024-11-16 09:59:34,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:59:34" (3/3) ... [2024-11-16 09:59:34,812 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-16 09:59:34,827 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:59:34,827 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:59:34,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:59:34,913 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;@10dc0f98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:59:34,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:59:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 562 states have (on average 1.5355871886120998) internal successors, (863), 570 states have internal predecessors, (863), 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) [2024-11-16 09:59:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:59:34,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:34,934 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:34,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:34,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1285327279, now seen corresponding path program 1 times [2024-11-16 09:59:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749278283] [2024-11-16 09:59:34,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:34,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:59:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:59:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:59:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:35,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:35,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749278283] [2024-11-16 09:59:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749278283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:35,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:35,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:59:35,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388569647] [2024-11-16 09:59:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:35,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:59:35,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:35,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:59:35,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:59:35,396 INFO L87 Difference]: Start difference. First operand has 625 states, 562 states have (on average 1.5355871886120998) internal successors, (863), 570 states have internal predecessors, (863), 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 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:36,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:36,861 INFO L93 Difference]: Finished difference Result 1367 states and 2087 transitions. [2024-11-16 09:59:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:59:36,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 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 69 [2024-11-16 09:59:36,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:36,876 INFO L225 Difference]: With dead ends: 1367 [2024-11-16 09:59:36,878 INFO L226 Difference]: Without dead ends: 758 [2024-11-16 09:59:36,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:59:36,890 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 978 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:36,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 3260 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:59:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-16 09:59:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 718. [2024-11-16 09:59:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 636 states have (on average 1.4622641509433962) internal successors, (930), 643 states have internal predecessors, (930), 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) [2024-11-16 09:59:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1047 transitions. [2024-11-16 09:59:36,987 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1047 transitions. Word has length 69 [2024-11-16 09:59:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:36,988 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 1047 transitions. [2024-11-16 09:59:36,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1047 transitions. [2024-11-16 09:59:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:59:36,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:36,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:36,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:59:36,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:36,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash -571888207, now seen corresponding path program 1 times [2024-11-16 09:59:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699967924] [2024-11-16 09:59:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:36,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:59:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:59:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:59:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:37,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:37,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699967924] [2024-11-16 09:59:37,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699967924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:37,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:37,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:59:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637691688] [2024-11-16 09:59:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:37,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:59:37,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:59:37,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:59:37,199 INFO L87 Difference]: Start difference. First operand 718 states and 1047 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:38,513 INFO L93 Difference]: Finished difference Result 1153 states and 1651 transitions. [2024-11-16 09:59:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:59:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 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 69 [2024-11-16 09:59:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:38,521 INFO L225 Difference]: With dead ends: 1153 [2024-11-16 09:59:38,521 INFO L226 Difference]: Without dead ends: 919 [2024-11-16 09:59:38,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:59:38,523 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 2024 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:38,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 2702 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:59:38,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-16 09:59:38,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 842. [2024-11-16 09:59:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 738 states have (on average 1.4471544715447155) internal successors, (1068), 747 states have internal predecessors, (1068), 71 states have call successors, (71), 29 states have call predecessors, (71), 31 states have return successors, (80), 69 states have call predecessors, (80), 67 states have call successors, (80) [2024-11-16 09:59:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1219 transitions. [2024-11-16 09:59:38,560 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1219 transitions. Word has length 69 [2024-11-16 09:59:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:38,560 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1219 transitions. [2024-11-16 09:59:38,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1219 transitions. [2024-11-16 09:59:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:59:38,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:38,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:38,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:59:38,567 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:38,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash 121504498, now seen corresponding path program 1 times [2024-11-16 09:59:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987741672] [2024-11-16 09:59:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:59:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:59:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:59:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:38,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:38,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987741672] [2024-11-16 09:59:38,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987741672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:38,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:38,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:59:38,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941278320] [2024-11-16 09:59:38,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:38,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:59:38,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:38,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:59:38,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:59:38,716 INFO L87 Difference]: Start difference. First operand 842 states and 1219 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:59:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:40,408 INFO L93 Difference]: Finished difference Result 2557 states and 3586 transitions. [2024-11-16 09:59:40,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:59:40,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 69 [2024-11-16 09:59:40,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:40,416 INFO L225 Difference]: With dead ends: 2557 [2024-11-16 09:59:40,416 INFO L226 Difference]: Without dead ends: 2187 [2024-11-16 09:59:40,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:59:40,419 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 4858 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:40,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 3058 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:59:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-11-16 09:59:40,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2014. [2024-11-16 09:59:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2014 states, 1705 states have (on average 1.3671554252199414) internal successors, (2331), 1729 states have internal predecessors, (2331), 181 states have call successors, (181), 112 states have call predecessors, (181), 126 states have return successors, (213), 175 states have call predecessors, (213), 177 states have call successors, (213) [2024-11-16 09:59:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 2725 transitions. [2024-11-16 09:59:40,508 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 2725 transitions. Word has length 69 [2024-11-16 09:59:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:40,510 INFO L471 AbstractCegarLoop]: Abstraction has 2014 states and 2725 transitions. [2024-11-16 09:59:40,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-16 09:59:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 2725 transitions. [2024-11-16 09:59:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:59:40,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:40,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:40,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:59:40,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:40,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash 662554319, now seen corresponding path program 1 times [2024-11-16 09:59:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:40,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093764493] [2024-11-16 09:59:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:40,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:59:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:59:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:40,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:40,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093764493] [2024-11-16 09:59:40,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093764493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:40,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:40,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:59:40,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132205979] [2024-11-16 09:59:40,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:40,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:59:40,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:40,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:59:40,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:59:40,673 INFO L87 Difference]: Start difference. First operand 2014 states and 2725 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:59:41,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:41,790 INFO L93 Difference]: Finished difference Result 3682 states and 4936 transitions. [2024-11-16 09:59:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:59:41,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 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 70 [2024-11-16 09:59:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:41,800 INFO L225 Difference]: With dead ends: 3682 [2024-11-16 09:59:41,800 INFO L226 Difference]: Without dead ends: 2146 [2024-11-16 09:59:41,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:59:41,807 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 1060 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:41,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 3324 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:59:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2024-11-16 09:59:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2054. [2024-11-16 09:59:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1737 states have (on average 1.3569372481289579) internal successors, (2357), 1761 states have internal predecessors, (2357), 181 states have call successors, (181), 112 states have call predecessors, (181), 134 states have return successors, (221), 183 states have call predecessors, (221), 177 states have call successors, (221) [2024-11-16 09:59:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2759 transitions. [2024-11-16 09:59:41,900 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2759 transitions. Word has length 70 [2024-11-16 09:59:41,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:41,901 INFO L471 AbstractCegarLoop]: Abstraction has 2054 states and 2759 transitions. [2024-11-16 09:59:41,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:59:41,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2759 transitions. [2024-11-16 09:59:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:59:41,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:41,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:41,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:59:41,902 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:41,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash 786627566, now seen corresponding path program 1 times [2024-11-16 09:59:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515071071] [2024-11-16 09:59:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 09:59:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:59:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:42,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:42,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515071071] [2024-11-16 09:59:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515071071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:42,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:42,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:59:42,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251694749] [2024-11-16 09:59:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:42,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:59:42,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:59:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:59:42,098 INFO L87 Difference]: Start difference. First operand 2054 states and 2759 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:59:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:43,798 INFO L93 Difference]: Finished difference Result 6038 states and 8045 transitions. [2024-11-16 09:59:43,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:59:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 70 [2024-11-16 09:59:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:43,809 INFO L225 Difference]: With dead ends: 6038 [2024-11-16 09:59:43,809 INFO L226 Difference]: Without dead ends: 2425 [2024-11-16 09:59:43,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:59:43,817 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 5034 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:43,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5052 Valid, 3102 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:59:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2024-11-16 09:59:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2240. [2024-11-16 09:59:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 1851 states have (on average 1.3279308481901675) internal successors, (2458), 1877 states have internal predecessors, (2458), 221 states have call successors, (221), 140 states have call predecessors, (221), 166 states have return successors, (267), 225 states have call predecessors, (267), 217 states have call successors, (267) [2024-11-16 09:59:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2946 transitions. [2024-11-16 09:59:43,912 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2946 transitions. Word has length 70 [2024-11-16 09:59:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:43,912 INFO L471 AbstractCegarLoop]: Abstraction has 2240 states and 2946 transitions. [2024-11-16 09:59:43,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:59:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2946 transitions. [2024-11-16 09:59:43,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:59:43,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:43,916 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:43,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:59:43,917 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:43,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:43,917 INFO L85 PathProgramCache]: Analyzing trace with hash 784880395, now seen corresponding path program 1 times [2024-11-16 09:59:43,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:43,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062021343] [2024-11-16 09:59:43,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:43,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:43,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:43,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:59:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:59:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:44,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062021343] [2024-11-16 09:59:44,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062021343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:44,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:44,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:59:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759910525] [2024-11-16 09:59:44,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:44,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:59:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:59:44,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:59:44,060 INFO L87 Difference]: Start difference. First operand 2240 states and 2946 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:59:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:45,104 INFO L93 Difference]: Finished difference Result 4180 states and 5455 transitions. [2024-11-16 09:59:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:59:45,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 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 103 [2024-11-16 09:59:45,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:45,115 INFO L225 Difference]: With dead ends: 4180 [2024-11-16 09:59:45,115 INFO L226 Difference]: Without dead ends: 2418 [2024-11-16 09:59:45,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:59:45,120 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 1057 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:45,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3259 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:59:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2024-11-16 09:59:45,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2300. [2024-11-16 09:59:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 1899 states have (on average 1.3164823591363877) internal successors, (2500), 1925 states have internal predecessors, (2500), 221 states have call successors, (221), 140 states have call predecessors, (221), 178 states have return successors, (279), 237 states have call predecessors, (279), 217 states have call successors, (279) [2024-11-16 09:59:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3000 transitions. [2024-11-16 09:59:45,222 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3000 transitions. Word has length 103 [2024-11-16 09:59:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:45,223 INFO L471 AbstractCegarLoop]: Abstraction has 2300 states and 3000 transitions. [2024-11-16 09:59:45,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:59:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3000 transitions. [2024-11-16 09:59:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:59:45,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:45,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:45,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:59:45,225 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:45,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:45,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2089274124, now seen corresponding path program 1 times [2024-11-16 09:59:45,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:45,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290768730] [2024-11-16 09:59:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:45,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:59:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:59:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290768730] [2024-11-16 09:59:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290768730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:45,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:59:45,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231322826] [2024-11-16 09:59:45,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:45,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:59:45,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:45,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:59:45,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:59:45,401 INFO L87 Difference]: Start difference. First operand 2300 states and 3000 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:46,448 INFO L93 Difference]: Finished difference Result 3925 states and 5062 transitions. [2024-11-16 09:59:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 09:59:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 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 103 [2024-11-16 09:59:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:46,457 INFO L225 Difference]: With dead ends: 3925 [2024-11-16 09:59:46,457 INFO L226 Difference]: Without dead ends: 2358 [2024-11-16 09:59:46,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-16 09:59:46,461 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 2022 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:46,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 2365 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:59:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-16 09:59:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2062. [2024-11-16 09:59:46,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1714 states have (on average 1.3214702450408402) internal successors, (2265), 1735 states have internal predecessors, (2265), 193 states have call successors, (193), 121 states have call predecessors, (193), 153 states have return successors, (239), 207 states have call predecessors, (239), 189 states have call successors, (239) [2024-11-16 09:59:46,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2697 transitions. [2024-11-16 09:59:46,544 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2697 transitions. Word has length 103 [2024-11-16 09:59:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:46,545 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2697 transitions. [2024-11-16 09:59:46,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:46,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2697 transitions. [2024-11-16 09:59:46,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:59:46,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:46,546 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:46,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:59:46,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:46,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:46,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2104781205, now seen corresponding path program 1 times [2024-11-16 09:59:46,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:46,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184385479] [2024-11-16 09:59:46,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:46,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:59:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:59:46,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184385479] [2024-11-16 09:59:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184385479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:59:46,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447270742] [2024-11-16 09:59:46,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:46,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:59:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:59:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:59:46,639 INFO L87 Difference]: Start difference. First operand 2062 states and 2697 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 09:59:47,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:47,415 INFO L93 Difference]: Finished difference Result 5441 states and 7036 transitions. [2024-11-16 09:59:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:59:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 103 [2024-11-16 09:59:47,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:47,429 INFO L225 Difference]: With dead ends: 5441 [2024-11-16 09:59:47,430 INFO L226 Difference]: Without dead ends: 3858 [2024-11-16 09:59:47,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:59:47,434 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 1559 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:47,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 2309 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:59:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2024-11-16 09:59:47,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3644. [2024-11-16 09:59:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2976 states have (on average 1.2788978494623655) internal successors, (3806), 3026 states have internal predecessors, (3806), 354 states have call successors, (354), 234 states have call predecessors, (354), 312 states have return successors, (522), 386 states have call predecessors, (522), 350 states have call successors, (522) [2024-11-16 09:59:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 4682 transitions. [2024-11-16 09:59:47,630 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 4682 transitions. Word has length 103 [2024-11-16 09:59:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:47,630 INFO L471 AbstractCegarLoop]: Abstraction has 3644 states and 4682 transitions. [2024-11-16 09:59:47,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-16 09:59:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 4682 transitions. [2024-11-16 09:59:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:59:47,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:47,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:47,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:59:47,633 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:47,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1748431596, now seen corresponding path program 1 times [2024-11-16 09:59:47,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246630590] [2024-11-16 09:59:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:47,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:59:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:59:47,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:47,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246630590] [2024-11-16 09:59:47,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246630590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:47,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:47,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:59:47,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486398961] [2024-11-16 09:59:47,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:47,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:59:47,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:47,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:59:47,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:59:47,703 INFO L87 Difference]: Start difference. First operand 3644 states and 4682 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:48,318 INFO L93 Difference]: Finished difference Result 5342 states and 6780 transitions. [2024-11-16 09:59:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:59:48,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2024-11-16 09:59:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:48,328 INFO L225 Difference]: With dead ends: 5342 [2024-11-16 09:59:48,328 INFO L226 Difference]: Without dead ends: 2177 [2024-11-16 09:59:48,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:59:48,335 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 836 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:48,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2170 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:59:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2024-11-16 09:59:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2062. [2024-11-16 09:59:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1714 states have (on average 1.2998833138856476) internal successors, (2228), 1735 states have internal predecessors, (2228), 193 states have call successors, (193), 121 states have call predecessors, (193), 153 states have return successors, (239), 207 states have call predecessors, (239), 189 states have call successors, (239) [2024-11-16 09:59:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2660 transitions. [2024-11-16 09:59:48,447 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2660 transitions. Word has length 103 [2024-11-16 09:59:48,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:48,447 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2660 transitions. [2024-11-16 09:59:48,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:59:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2660 transitions. [2024-11-16 09:59:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:59:48,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:48,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:48,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:59:48,450 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:48,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash -173965108, now seen corresponding path program 1 times [2024-11-16 09:59:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:48,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016578676] [2024-11-16 09:59:48,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:48,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 09:59:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 09:59:48,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016578676] [2024-11-16 09:59:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016578676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:48,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:59:48,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022619110] [2024-11-16 09:59:48,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:48,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:59:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:48,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:59:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:59:48,552 INFO L87 Difference]: Start difference. First operand 2062 states and 2660 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:59:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:49,767 INFO L93 Difference]: Finished difference Result 4624 states and 5887 transitions. [2024-11-16 09:59:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 09:59:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2024-11-16 09:59:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:49,778 INFO L225 Difference]: With dead ends: 4624 [2024-11-16 09:59:49,778 INFO L226 Difference]: Without dead ends: 2881 [2024-11-16 09:59:49,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:59:49,782 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 2755 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:49,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 2428 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:59:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-16 09:59:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2701. [2024-11-16 09:59:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2199 states have (on average 1.2678490222828558) internal successors, (2788), 2228 states have internal predecessors, (2788), 270 states have call successors, (270), 169 states have call predecessors, (270), 230 states have return successors, (370), 305 states have call predecessors, (370), 266 states have call successors, (370) [2024-11-16 09:59:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3428 transitions. [2024-11-16 09:59:49,966 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3428 transitions. Word has length 104 [2024-11-16 09:59:49,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:49,967 INFO L471 AbstractCegarLoop]: Abstraction has 2701 states and 3428 transitions. [2024-11-16 09:59:49,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:59:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3428 transitions. [2024-11-16 09:59:49,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 09:59:49,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:49,969 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:49,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:59:49,969 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:49,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:49,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1330156378, now seen corresponding path program 1 times [2024-11-16 09:59:49,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:49,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667401013] [2024-11-16 09:59:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:49,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:59:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:59:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:59:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 09:59:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 09:59:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 09:59:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:59:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:59:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 09:59:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:59:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:59:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 09:59:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:59:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:59:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 09:59:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-16 09:59:50,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667401013] [2024-11-16 09:59:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667401013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:59:50,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477674505] [2024-11-16 09:59:50,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:50,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:59:50,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:59:50,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:59:50,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:59:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:50,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:59:50,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:59:50,414 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 09:59:50,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:59:50,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477674505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:50,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:59:50,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-16 09:59:50,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403163141] [2024-11-16 09:59:50,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:50,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:59:50,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:50,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:59:50,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:59:50,417 INFO L87 Difference]: Start difference. First operand 2701 states and 3428 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:59:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:50,627 INFO L93 Difference]: Finished difference Result 6884 states and 8514 transitions. [2024-11-16 09:59:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:59:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 179 [2024-11-16 09:59:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:50,644 INFO L225 Difference]: With dead ends: 6884 [2024-11-16 09:59:50,644 INFO L226 Difference]: Without dead ends: 4745 [2024-11-16 09:59:50,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:59:50,649 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 64 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:50,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1705 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:59:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4745 states. [2024-11-16 09:59:50,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 4702. [2024-11-16 09:59:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4702 states, 3787 states have (on average 1.2339582783205705) internal successors, (4673), 3839 states have internal predecessors, (4673), 477 states have call successors, (477), 330 states have call predecessors, (477), 436 states have return successors, (638), 534 states have call predecessors, (638), 473 states have call successors, (638) [2024-11-16 09:59:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4702 states to 4702 states and 5788 transitions. [2024-11-16 09:59:50,900 INFO L78 Accepts]: Start accepts. Automaton has 4702 states and 5788 transitions. Word has length 179 [2024-11-16 09:59:50,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:50,900 INFO L471 AbstractCegarLoop]: Abstraction has 4702 states and 5788 transitions. [2024-11-16 09:59:50,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:59:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4702 states and 5788 transitions. [2024-11-16 09:59:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:59:50,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:50,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:50,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:59:51,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 09:59:51,104 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:51,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1720812170, now seen corresponding path program 1 times [2024-11-16 09:59:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:51,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320957147] [2024-11-16 09:59:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:51,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:59:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:59:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:59:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:59:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:51,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:51,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320957147] [2024-11-16 09:59:51,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320957147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:51,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:51,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:59:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563835064] [2024-11-16 09:59:51,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:51,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:59:51,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:59:51,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:59:51,257 INFO L87 Difference]: Start difference. First operand 4702 states and 5788 transitions. Second operand has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 09:59:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:53,505 INFO L93 Difference]: Finished difference Result 5314 states and 6742 transitions. [2024-11-16 09:59:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:59:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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 195 [2024-11-16 09:59:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:53,517 INFO L225 Difference]: With dead ends: 5314 [2024-11-16 09:59:53,517 INFO L226 Difference]: Without dead ends: 4855 [2024-11-16 09:59:53,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:59:53,519 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 1291 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:53,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 1296 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:59:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2024-11-16 09:59:54,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4702. [2024-11-16 09:59:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4702 states, 3787 states have (on average 1.2336942170583576) internal successors, (4672), 3839 states have internal predecessors, (4672), 477 states have call successors, (477), 330 states have call predecessors, (477), 436 states have return successors, (638), 534 states have call predecessors, (638), 473 states have call successors, (638) [2024-11-16 09:59:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4702 states to 4702 states and 5787 transitions. [2024-11-16 09:59:54,172 INFO L78 Accepts]: Start accepts. Automaton has 4702 states and 5787 transitions. Word has length 195 [2024-11-16 09:59:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:54,172 INFO L471 AbstractCegarLoop]: Abstraction has 4702 states and 5787 transitions. [2024-11-16 09:59:54,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 09:59:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4702 states and 5787 transitions. [2024-11-16 09:59:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:59:54,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:54,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:54,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:59:54,176 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:54,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1142046025, now seen corresponding path program 1 times [2024-11-16 09:59:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:54,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954151522] [2024-11-16 09:59:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:54,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:59:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:59:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:59:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:59:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:54,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:54,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954151522] [2024-11-16 09:59:54,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954151522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:54,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:54,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:59:54,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234424290] [2024-11-16 09:59:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:54,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:59:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:59:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:59:54,368 INFO L87 Difference]: Start difference. First operand 4702 states and 5787 transitions. Second operand has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 09:59:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:59:56,462 INFO L93 Difference]: Finished difference Result 5306 states and 6725 transitions. [2024-11-16 09:59:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:59:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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 195 [2024-11-16 09:59:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:59:56,478 INFO L225 Difference]: With dead ends: 5306 [2024-11-16 09:59:56,478 INFO L226 Difference]: Without dead ends: 4855 [2024-11-16 09:59:56,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:59:56,482 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 1282 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:59:56,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1294 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:59:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2024-11-16 09:59:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4702. [2024-11-16 09:59:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4702 states, 3787 states have (on average 1.2334301557961447) internal successors, (4671), 3839 states have internal predecessors, (4671), 477 states have call successors, (477), 330 states have call predecessors, (477), 436 states have return successors, (638), 534 states have call predecessors, (638), 473 states have call successors, (638) [2024-11-16 09:59:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4702 states to 4702 states and 5786 transitions. [2024-11-16 09:59:57,234 INFO L78 Accepts]: Start accepts. Automaton has 4702 states and 5786 transitions. Word has length 195 [2024-11-16 09:59:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:59:57,235 INFO L471 AbstractCegarLoop]: Abstraction has 4702 states and 5786 transitions. [2024-11-16 09:59:57,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-16 09:59:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4702 states and 5786 transitions. [2024-11-16 09:59:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:59:57,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:59:57,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:59:57,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:59:57,238 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:59:57,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:59:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1132275464, now seen corresponding path program 1 times [2024-11-16 09:59:57,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:59:57,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063166669] [2024-11-16 09:59:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:59:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:59:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:59:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:59:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:59:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:59:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:59:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:59:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:59:57,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:59:57,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063166669] [2024-11-16 09:59:57,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063166669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:59:57,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:59:57,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:59:57,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560670984] [2024-11-16 09:59:57,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:59:57,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:59:57,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:59:57,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:59:57,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:59:57,496 INFO L87 Difference]: Start difference. First operand 4702 states and 5786 transitions. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-11-16 10:00:00,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:00,416 INFO L93 Difference]: Finished difference Result 5924 states and 7693 transitions. [2024-11-16 10:00:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 10:00:00,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:00,435 INFO L225 Difference]: With dead ends: 5924 [2024-11-16 10:00:00,435 INFO L226 Difference]: Without dead ends: 5476 [2024-11-16 10:00:00,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:00:00,438 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 2003 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:00,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 2127 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 10:00:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2024-11-16 10:00:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5168. [2024-11-16 10:00:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 4224 states have (on average 1.2630208333333333) internal successors, (5335), 4277 states have internal predecessors, (5335), 499 states have call successors, (499), 336 states have call predecessors, (499), 443 states have return successors, (663), 556 states have call predecessors, (663), 495 states have call successors, (663) [2024-11-16 10:00:01,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 6497 transitions. [2024-11-16 10:00:01,062 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 6497 transitions. Word has length 195 [2024-11-16 10:00:01,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:01,063 INFO L471 AbstractCegarLoop]: Abstraction has 5168 states and 6497 transitions. [2024-11-16 10:00:01,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-11-16 10:00:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 6497 transitions. [2024-11-16 10:00:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:01,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:01,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:01,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:00:01,066 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:01,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1678522186, now seen corresponding path program 1 times [2024-11-16 10:00:01,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:01,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984333706] [2024-11-16 10:00:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:01,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:01,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984333706] [2024-11-16 10:00:01,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984333706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:01,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:01,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:01,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091980355] [2024-11-16 10:00:01,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:01,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:01,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:01,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:01,336 INFO L87 Difference]: Start difference. First operand 5168 states and 6497 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:05,383 INFO L93 Difference]: Finished difference Result 7030 states and 9410 transitions. [2024-11-16 10:00:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:05,400 INFO L225 Difference]: With dead ends: 7030 [2024-11-16 10:00:05,400 INFO L226 Difference]: Without dead ends: 6116 [2024-11-16 10:00:05,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:05,405 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 2036 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4142 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:05,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2068 Valid, 3674 Invalid, 4249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4142 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 10:00:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6116 states. [2024-11-16 10:00:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6116 to 5605. [2024-11-16 10:00:06,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5605 states, 4632 states have (on average 1.2825993091537133) internal successors, (5941), 4686 states have internal predecessors, (5941), 521 states have call successors, (521), 342 states have call predecessors, (521), 450 states have return successors, (687), 579 states have call predecessors, (687), 517 states have call successors, (687) [2024-11-16 10:00:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5605 states to 5605 states and 7149 transitions. [2024-11-16 10:00:06,046 INFO L78 Accepts]: Start accepts. Automaton has 5605 states and 7149 transitions. Word has length 195 [2024-11-16 10:00:06,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:06,046 INFO L471 AbstractCegarLoop]: Abstraction has 5605 states and 7149 transitions. [2024-11-16 10:00:06,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5605 states and 7149 transitions. [2024-11-16 10:00:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:06,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:06,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:06,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:00:06,050 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:06,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:06,050 INFO L85 PathProgramCache]: Analyzing trace with hash 926973033, now seen corresponding path program 1 times [2024-11-16 10:00:06,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:06,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509282623] [2024-11-16 10:00:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:06,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:06,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:06,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509282623] [2024-11-16 10:00:06,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509282623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:06,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:06,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:06,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256792006] [2024-11-16 10:00:06,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:06,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:06,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:06,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:06,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:06,269 INFO L87 Difference]: Start difference. First operand 5605 states and 7149 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:10,462 INFO L93 Difference]: Finished difference Result 8664 states and 11924 transitions. [2024-11-16 10:00:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:10,480 INFO L225 Difference]: With dead ends: 8664 [2024-11-16 10:00:10,480 INFO L226 Difference]: Without dead ends: 7313 [2024-11-16 10:00:10,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:10,486 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 2034 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4138 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 4247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:10,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 3672 Invalid, 4247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4138 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 10:00:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2024-11-16 10:00:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 6480. [2024-11-16 10:00:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 5449 states have (on average 1.3129014498073042) internal successors, (7154), 5505 states have internal predecessors, (7154), 565 states have call successors, (565), 354 states have call predecessors, (565), 464 states have return successors, (739), 625 states have call predecessors, (739), 561 states have call successors, (739) [2024-11-16 10:00:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 8458 transitions. [2024-11-16 10:00:11,198 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 8458 transitions. Word has length 195 [2024-11-16 10:00:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:11,198 INFO L471 AbstractCegarLoop]: Abstraction has 6480 states and 8458 transitions. [2024-11-16 10:00:11,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 8458 transitions. [2024-11-16 10:00:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:11,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:11,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:11,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:00:11,202 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:11,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1175480470, now seen corresponding path program 1 times [2024-11-16 10:00:11,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:11,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682700957] [2024-11-16 10:00:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:11,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:11,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682700957] [2024-11-16 10:00:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682700957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:11,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:11,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:11,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825722831] [2024-11-16 10:00:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:11,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:11,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:11,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:11,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:11,420 INFO L87 Difference]: Start difference. First operand 6480 states and 8458 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:15,344 INFO L93 Difference]: Finished difference Result 11819 states and 16741 transitions. [2024-11-16 10:00:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:15,373 INFO L225 Difference]: With dead ends: 11819 [2024-11-16 10:00:15,373 INFO L226 Difference]: Without dead ends: 9593 [2024-11-16 10:00:15,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:15,382 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 2030 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4129 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:15,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 3672 Invalid, 4238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4129 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 10:00:15,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9593 states. [2024-11-16 10:00:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9593 to 8231. [2024-11-16 10:00:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 7084 states have (on average 1.352343308865048) internal successors, (9580), 7144 states have internal predecessors, (9580), 653 states have call successors, (653), 378 states have call predecessors, (653), 492 states have return successors, (849), 717 states have call predecessors, (849), 649 states have call successors, (849) [2024-11-16 10:00:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11082 transitions. [2024-11-16 10:00:16,172 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11082 transitions. Word has length 195 [2024-11-16 10:00:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:16,172 INFO L471 AbstractCegarLoop]: Abstraction has 8231 states and 11082 transitions. [2024-11-16 10:00:16,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11082 transitions. [2024-11-16 10:00:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:16,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:16,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:00:16,177 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1520396215, now seen corresponding path program 1 times [2024-11-16 10:00:16,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557179283] [2024-11-16 10:00:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:16,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557179283] [2024-11-16 10:00:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557179283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:16,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:16,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:16,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100746667] [2024-11-16 10:00:16,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:16,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:16,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:16,395 INFO L87 Difference]: Start difference. First operand 8231 states and 11082 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:20,386 INFO L93 Difference]: Finished difference Result 18128 states and 26391 transitions. [2024-11-16 10:00:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:20,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:20,418 INFO L225 Difference]: With dead ends: 18128 [2024-11-16 10:00:20,418 INFO L226 Difference]: Without dead ends: 14151 [2024-11-16 10:00:20,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:20,428 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 2026 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 4229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:20,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 3672 Invalid, 4229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 10:00:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14151 states. [2024-11-16 10:00:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 11738. [2024-11-16 10:00:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11738 states, 10359 states have (on average 1.393763876822087) internal successors, (14438), 10427 states have internal predecessors, (14438), 829 states have call successors, (829), 426 states have call predecessors, (829), 548 states have return successors, (1087), 901 states have call predecessors, (1087), 825 states have call successors, (1087) [2024-11-16 10:00:21,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11738 states to 11738 states and 16354 transitions. [2024-11-16 10:00:21,343 INFO L78 Accepts]: Start accepts. Automaton has 11738 states and 16354 transitions. Word has length 195 [2024-11-16 10:00:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:21,343 INFO L471 AbstractCegarLoop]: Abstraction has 11738 states and 16354 transitions. [2024-11-16 10:00:21,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 11738 states and 16354 transitions. [2024-11-16 10:00:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:21,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:21,349 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:21,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:00:21,349 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:21,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:21,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2070708106, now seen corresponding path program 1 times [2024-11-16 10:00:21,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:21,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045079204] [2024-11-16 10:00:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:21,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:21,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:21,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045079204] [2024-11-16 10:00:21,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045079204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:21,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:21,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:21,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451416566] [2024-11-16 10:00:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:21,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:21,574 INFO L87 Difference]: Start difference. First operand 11738 states and 16354 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:24,128 INFO L93 Difference]: Finished difference Result 21758 states and 31979 transitions. [2024-11-16 10:00:24,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:00:24,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:24,165 INFO L225 Difference]: With dead ends: 21758 [2024-11-16 10:00:24,166 INFO L226 Difference]: Without dead ends: 14274 [2024-11-16 10:00:24,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:00:24,183 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1868 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:24,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 1658 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 10:00:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2024-11-16 10:00:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 11738. [2024-11-16 10:00:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11738 states, 10359 states have (on average 1.3921227917752679) internal successors, (14421), 10427 states have internal predecessors, (14421), 829 states have call successors, (829), 426 states have call predecessors, (829), 548 states have return successors, (1087), 901 states have call predecessors, (1087), 825 states have call successors, (1087) [2024-11-16 10:00:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11738 states to 11738 states and 16337 transitions. [2024-11-16 10:00:25,172 INFO L78 Accepts]: Start accepts. Automaton has 11738 states and 16337 transitions. Word has length 195 [2024-11-16 10:00:25,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:25,172 INFO L471 AbstractCegarLoop]: Abstraction has 11738 states and 16337 transitions. [2024-11-16 10:00:25,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 11738 states and 16337 transitions. [2024-11-16 10:00:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:25,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:25,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:25,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:00:25,177 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:25,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1969869783, now seen corresponding path program 1 times [2024-11-16 10:00:25,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:25,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398826701] [2024-11-16 10:00:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:25,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:25,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398826701] [2024-11-16 10:00:25,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398826701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:25,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:25,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:25,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159460850] [2024-11-16 10:00:25,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:25,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:25,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:25,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:25,376 INFO L87 Difference]: Start difference. First operand 11738 states and 16337 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:27,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:27,931 INFO L93 Difference]: Finished difference Result 21740 states and 31893 transitions. [2024-11-16 10:00:27,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:00:27,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:27,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:27,963 INFO L225 Difference]: With dead ends: 21740 [2024-11-16 10:00:27,964 INFO L226 Difference]: Without dead ends: 14256 [2024-11-16 10:00:27,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:00:27,976 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1540 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:27,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 2000 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:00:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14256 states. [2024-11-16 10:00:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14256 to 11738. [2024-11-16 10:00:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11738 states, 10359 states have (on average 1.3904817067284487) internal successors, (14404), 10427 states have internal predecessors, (14404), 829 states have call successors, (829), 426 states have call predecessors, (829), 548 states have return successors, (1087), 901 states have call predecessors, (1087), 825 states have call successors, (1087) [2024-11-16 10:00:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11738 states to 11738 states and 16320 transitions. [2024-11-16 10:00:28,936 INFO L78 Accepts]: Start accepts. Automaton has 11738 states and 16320 transitions. Word has length 195 [2024-11-16 10:00:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:28,937 INFO L471 AbstractCegarLoop]: Abstraction has 11738 states and 16320 transitions. [2024-11-16 10:00:28,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 11738 states and 16320 transitions. [2024-11-16 10:00:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:28,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:28,942 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:28,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:00:28,942 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:28,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:28,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1363472298, now seen corresponding path program 1 times [2024-11-16 10:00:28,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:28,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549222249] [2024-11-16 10:00:28,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:28,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:29,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549222249] [2024-11-16 10:00:29,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549222249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:29,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:29,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165824099] [2024-11-16 10:00:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:29,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:29,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:29,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:29,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:29,147 INFO L87 Difference]: Start difference. First operand 11738 states and 16320 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:31,798 INFO L93 Difference]: Finished difference Result 21721 states and 31805 transitions. [2024-11-16 10:00:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:00:31,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:31,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:31,829 INFO L225 Difference]: With dead ends: 21721 [2024-11-16 10:00:31,829 INFO L226 Difference]: Without dead ends: 14237 [2024-11-16 10:00:31,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:00:31,843 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1774 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:31,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 1659 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 10:00:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14237 states. [2024-11-16 10:00:32,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14237 to 11738. [2024-11-16 10:00:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11738 states, 10359 states have (on average 1.3888406216816296) internal successors, (14387), 10427 states have internal predecessors, (14387), 829 states have call successors, (829), 426 states have call predecessors, (829), 548 states have return successors, (1087), 901 states have call predecessors, (1087), 825 states have call successors, (1087) [2024-11-16 10:00:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11738 states to 11738 states and 16303 transitions. [2024-11-16 10:00:32,885 INFO L78 Accepts]: Start accepts. Automaton has 11738 states and 16303 transitions. Word has length 195 [2024-11-16 10:00:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:32,885 INFO L471 AbstractCegarLoop]: Abstraction has 11738 states and 16303 transitions. [2024-11-16 10:00:32,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 11738 states and 16303 transitions. [2024-11-16 10:00:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:32,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:32,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:32,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:00:32,890 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:32,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 501168137, now seen corresponding path program 1 times [2024-11-16 10:00:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:32,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734922923] [2024-11-16 10:00:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:32,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:33,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:33,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:33,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:33,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734922923] [2024-11-16 10:00:33,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734922923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:33,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:33,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:33,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881810871] [2024-11-16 10:00:33,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:33,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:33,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:33,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:33,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:33,098 INFO L87 Difference]: Start difference. First operand 11738 states and 16303 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:37,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:37,678 INFO L93 Difference]: Finished difference Result 30686 states and 45385 transitions. [2024-11-16 10:00:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:37,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:37,724 INFO L225 Difference]: With dead ends: 30686 [2024-11-16 10:00:37,725 INFO L226 Difference]: Without dead ends: 23202 [2024-11-16 10:00:37,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:37,738 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 1998 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4039 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:37,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 3672 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4039 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 10:00:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23202 states. [2024-11-16 10:00:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23202 to 18813. [2024-11-16 10:00:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18813 states, 16970 states have (on average 1.4215674720094285) internal successors, (24124), 17054 states have internal predecessors, (24124), 1181 states have call successors, (1181), 522 states have call predecessors, (1181), 660 states have return successors, (1617), 1269 states have call predecessors, (1617), 1177 states have call successors, (1617) [2024-11-16 10:00:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18813 states to 18813 states and 26922 transitions. [2024-11-16 10:00:39,043 INFO L78 Accepts]: Start accepts. Automaton has 18813 states and 26922 transitions. Word has length 195 [2024-11-16 10:00:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:39,044 INFO L471 AbstractCegarLoop]: Abstraction has 18813 states and 26922 transitions. [2024-11-16 10:00:39,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 18813 states and 26922 transitions. [2024-11-16 10:00:39,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:39,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:39,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:39,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:00:39,051 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:39,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:39,051 INFO L85 PathProgramCache]: Analyzing trace with hash 750446538, now seen corresponding path program 1 times [2024-11-16 10:00:39,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:39,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998649870] [2024-11-16 10:00:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:39,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:39,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:39,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998649870] [2024-11-16 10:00:39,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998649870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:39,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:39,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:39,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660214314] [2024-11-16 10:00:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:39,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:39,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:39,240 INFO L87 Difference]: Start difference. First operand 18813 states and 26922 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:42,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:42,203 INFO L93 Difference]: Finished difference Result 38009 states and 56711 transitions. [2024-11-16 10:00:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:00:42,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:42,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:42,266 INFO L225 Difference]: With dead ends: 38009 [2024-11-16 10:00:42,266 INFO L226 Difference]: Without dead ends: 23450 [2024-11-16 10:00:42,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:00:42,290 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1537 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:42,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 2000 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:00:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23450 states. [2024-11-16 10:00:43,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23450 to 18813. [2024-11-16 10:00:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18813 states, 16970 states have (on average 1.4196228638774309) internal successors, (24091), 17054 states have internal predecessors, (24091), 1181 states have call successors, (1181), 522 states have call predecessors, (1181), 660 states have return successors, (1617), 1269 states have call predecessors, (1617), 1177 states have call successors, (1617) [2024-11-16 10:00:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18813 states to 18813 states and 26889 transitions. [2024-11-16 10:00:43,988 INFO L78 Accepts]: Start accepts. Automaton has 18813 states and 26889 transitions. Word has length 195 [2024-11-16 10:00:43,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:43,988 INFO L471 AbstractCegarLoop]: Abstraction has 18813 states and 26889 transitions. [2024-11-16 10:00:43,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 18813 states and 26889 transitions. [2024-11-16 10:00:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:43,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:43,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:43,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:00:43,996 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:43,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:43,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1035582441, now seen corresponding path program 1 times [2024-11-16 10:00:43,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:43,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050148663] [2024-11-16 10:00:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:43,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:44,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:44,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050148663] [2024-11-16 10:00:44,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050148663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:44,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:44,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792066007] [2024-11-16 10:00:44,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:44,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:44,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:44,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:44,190 INFO L87 Difference]: Start difference. First operand 18813 states and 26889 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:00:49,325 INFO L93 Difference]: Finished difference Result 55879 states and 83770 transitions. [2024-11-16 10:00:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 10:00:49,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 10:00:49,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:00:49,415 INFO L225 Difference]: With dead ends: 55879 [2024-11-16 10:00:49,416 INFO L226 Difference]: Without dead ends: 41320 [2024-11-16 10:00:49,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:00:49,443 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 1986 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 4006 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:00:49,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 3672 Invalid, 4115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4006 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 10:00:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41320 states. [2024-11-16 10:00:51,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41320 to 33019. [2024-11-16 10:00:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33019 states, 30248 states have (on average 1.4413514943136736) internal successors, (43598), 30364 states have internal predecessors, (43598), 1885 states have call successors, (1885), 714 states have call predecessors, (1885), 884 states have return successors, (2839), 2005 states have call predecessors, (2839), 1881 states have call successors, (2839) [2024-11-16 10:00:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33019 states to 33019 states and 48322 transitions. [2024-11-16 10:00:51,664 INFO L78 Accepts]: Start accepts. Automaton has 33019 states and 48322 transitions. Word has length 195 [2024-11-16 10:00:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:00:51,665 INFO L471 AbstractCegarLoop]: Abstraction has 33019 states and 48322 transitions. [2024-11-16 10:00:51,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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) [2024-11-16 10:00:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 33019 states and 48322 transitions. [2024-11-16 10:00:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 10:00:51,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:00:51,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:00:51,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:00:51,678 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:00:51,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:00:51,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1737517034, now seen corresponding path program 1 times [2024-11-16 10:00:51,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:00:51,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981298833] [2024-11-16 10:00:51,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:00:51,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:00:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 10:00:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 10:00:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 10:00:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 10:00:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 10:00:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:00:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:00:51,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:00:51,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981298833] [2024-11-16 10:00:51,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981298833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:00:51,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:00:51,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:00:51,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737733735] [2024-11-16 10:00:51,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:00:51,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:00:51,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:00:51,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:00:51,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:00:51,892 INFO L87 Difference]: Start difference. First operand 33019 states and 48322 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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)