./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-2.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_2.cil-1+token_ring.09.cil-2.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 39b635cc2ab0f0d4f8e606a07f9fc2cea48a2218c52549f8b5aa54058d2e5b4b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:55:44,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:55:44,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:55:44,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:55:44,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:55:44,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:55:44,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:55:44,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:55:44,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:55:44,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:55:44,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:55:44,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:55:44,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:55:44,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:55:44,775 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:55:44,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:55:44,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:55:44,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:55:44,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:55:44,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:55:44,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:55:44,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:55:44,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:55:44,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:55:44,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:55:44,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:55:44,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:55:44,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:55:44,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:55:44,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:55:44,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:55:44,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:55:44,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:55:44,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:55:44,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:55:44,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:55:44,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:55:44,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:55:44,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:55:44,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:55:44,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:55:44,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:55:44,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39b635cc2ab0f0d4f8e606a07f9fc2cea48a2218c52549f8b5aa54058d2e5b4b [2024-11-16 09:55:45,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:55:45,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:55:45,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:55:45,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:55:45,039 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:55:45,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-2.c [2024-11-16 09:55:46,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:55:46,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:55:46,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-2.c [2024-11-16 09:55:46,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6181519f/aee7a81142394d98857866467793d954/FLAG41e347b42 [2024-11-16 09:55:46,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6181519f/aee7a81142394d98857866467793d954 [2024-11-16 09:55:46,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:55:46,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:55:46,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:55:46,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:55:46,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:55:46,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3121bc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46, skipping insertion in model container [2024-11-16 09:55:46,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:55:46,647 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_2.cil-1+token_ring.09.cil-2.c[914,927] [2024-11-16 09:55:46,692 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_2.cil-1+token_ring.09.cil-2.c[7115,7128] [2024-11-16 09:55:46,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:55:46,751 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:55:46,759 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_2.cil-1+token_ring.09.cil-2.c[914,927] [2024-11-16 09:55:46,791 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_2.cil-1+token_ring.09.cil-2.c[7115,7128] [2024-11-16 09:55:46,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:55:46,894 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:55:46,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46 WrapperNode [2024-11-16 09:55:46,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:55:46,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:55:46,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:55:46,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:55:46,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,939 INFO L138 Inliner]: procedures = 71, calls = 85, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 878 [2024-11-16 09:55:46,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:55:46,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:55:46,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:55:46,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:55:46,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,972 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 09:55:46,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:55:46,991 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:55:46,991 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:55:46,991 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:55:46,992 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (1/1) ... [2024-11-16 09:55:46,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:55:47,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:55:47,031 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 09:55:47,034 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 09:55:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:55:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:55:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:55:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:55:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:55:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:55:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:55:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:55:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:55:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:55:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:55:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:55:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:55:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:55:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:55:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:55:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:55:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:55:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:55:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:55:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-16 09:55:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-16 09:55:47,193 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:55:47,195 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:55:47,781 INFO L? ?]: Removed 113 outVars from TransFormulas that were not future-live. [2024-11-16 09:55:47,782 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:55:47,806 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:55:47,809 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:55:47,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:55:47 BoogieIcfgContainer [2024-11-16 09:55:47,810 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:55:47,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:55:47,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:55:47,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:55:47,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:55:46" (1/3) ... [2024-11-16 09:55:47,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30231409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:55:47, skipping insertion in model container [2024-11-16 09:55:47,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:55:46" (2/3) ... [2024-11-16 09:55:47,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30231409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:55:47, skipping insertion in model container [2024-11-16 09:55:47,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:55:47" (3/3) ... [2024-11-16 09:55:47,817 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.09.cil-2.c [2024-11-16 09:55:47,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:55:47,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:55:47,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:55:47,917 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;@4e050057, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:55:47,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:55:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 492 states, 435 states have (on average 1.5218390804597701) internal successors, (662), 443 states have internal predecessors, (662), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-16 09:55:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:55:47,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:47,966 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 09:55:47,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:47,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:47,971 INFO L85 PathProgramCache]: Analyzing trace with hash -635173511, now seen corresponding path program 1 times [2024-11-16 09:55:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010295676] [2024-11-16 09:55:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:47,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:48,273 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 09:55:48,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:48,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010295676] [2024-11-16 09:55:48,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010295676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:48,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:48,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:55:48,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783674262] [2024-11-16 09:55:48,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:48,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:55:48,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:48,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:55:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:55:48,305 INFO L87 Difference]: Start difference. First operand has 492 states, 435 states have (on average 1.5218390804597701) internal successors, (662), 443 states have internal predecessors, (662), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 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 09:55:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:49,069 INFO L93 Difference]: Finished difference Result 962 states and 1451 transitions. [2024-11-16 09:55:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:55:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 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 69 [2024-11-16 09:55:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:49,082 INFO L225 Difference]: With dead ends: 962 [2024-11-16 09:55:49,082 INFO L226 Difference]: Without dead ends: 483 [2024-11-16 09:55:49,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 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 09:55:49,089 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 657 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:49,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1751 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:55:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-16 09:55:49,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 465. [2024-11-16 09:55:49,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 411 states have (on average 1.4622871046228711) internal successors, (601), 416 states have internal predecessors, (601), 39 states have call successors, (39), 15 states have call predecessors, (39), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 09:55:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 675 transitions. [2024-11-16 09:55:49,181 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 675 transitions. Word has length 69 [2024-11-16 09:55:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:49,182 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 675 transitions. [2024-11-16 09:55:49,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 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 09:55:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 675 transitions. [2024-11-16 09:55:49,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:55:49,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:49,188 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 09:55:49,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:55:49,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:49,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash -915523400, now seen corresponding path program 1 times [2024-11-16 09:55:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061066453] [2024-11-16 09:55:49,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:49,451 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 09:55:49,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:49,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061066453] [2024-11-16 09:55:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061066453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:49,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:55:49,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806554382] [2024-11-16 09:55:49,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:49,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:55:49,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:49,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:55:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:55:49,461 INFO L87 Difference]: Start difference. First operand 465 states and 675 transitions. 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 09:55:50,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:50,451 INFO L93 Difference]: Finished difference Result 716 states and 1017 transitions. [2024-11-16 09:55:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:55:50,452 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 09:55:50,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:50,455 INFO L225 Difference]: With dead ends: 716 [2024-11-16 09:55:50,455 INFO L226 Difference]: Without dead ends: 614 [2024-11-16 09:55:50,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:55:50,457 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 1052 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:50,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1788 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:55:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-16 09:55:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 574. [2024-11-16 09:55:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 500 states have (on average 1.436) internal successors, (718), 507 states have internal predecessors, (718), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-11-16 09:55:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 819 transitions. [2024-11-16 09:55:50,489 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 819 transitions. Word has length 69 [2024-11-16 09:55:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:50,489 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 819 transitions. [2024-11-16 09:55:50,490 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 09:55:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 819 transitions. [2024-11-16 09:55:50,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:55:50,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:50,492 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 09:55:50,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:55:50,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:50,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:50,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1120585077, now seen corresponding path program 1 times [2024-11-16 09:55:50,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:50,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087894041] [2024-11-16 09:55:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:50,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:55:50,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:50,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087894041] [2024-11-16 09:55:50,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087894041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:50,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:50,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:55:50,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797996193] [2024-11-16 09:55:50,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:50,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:55:50,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:50,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:55:50,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:55:50,623 INFO L87 Difference]: Start difference. First operand 574 states and 819 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 09:55:51,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:51,641 INFO L93 Difference]: Finished difference Result 962 states and 1336 transitions. [2024-11-16 09:55:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:55:51,642 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 09:55:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:51,646 INFO L225 Difference]: With dead ends: 962 [2024-11-16 09:55:51,646 INFO L226 Difference]: Without dead ends: 758 [2024-11-16 09:55:51,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:55:51,648 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1596 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:51,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 2101 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:55:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-16 09:55:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 683. [2024-11-16 09:55:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 589 states have (on average 1.4159592529711376) internal successors, (834), 598 states have internal predecessors, (834), 61 states have call successors, (61), 29 states have call predecessors, (61), 31 states have return successors, (70), 59 states have call predecessors, (70), 57 states have call successors, (70) [2024-11-16 09:55:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 965 transitions. [2024-11-16 09:55:51,678 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 965 transitions. Word has length 69 [2024-11-16 09:55:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:51,678 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 965 transitions. [2024-11-16 09:55:51,678 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 09:55:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 965 transitions. [2024-11-16 09:55:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:55:51,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:51,680 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 09:55:51,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:55:51,681 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:51,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:51,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1813977782, now seen corresponding path program 1 times [2024-11-16 09:55:51,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:51,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193389305] [2024-11-16 09:55:51,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:51,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:51,802 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 09:55:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193389305] [2024-11-16 09:55:51,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193389305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:51,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:51,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:55:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372475236] [2024-11-16 09:55:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:51,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:55:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:55:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:55:51,805 INFO L87 Difference]: Start difference. First operand 683 states and 965 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:55:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:52,713 INFO L93 Difference]: Finished difference Result 1022 states and 1416 transitions. [2024-11-16 09:55:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:55:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-16 09:55:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:52,717 INFO L225 Difference]: With dead ends: 1022 [2024-11-16 09:55:52,717 INFO L226 Difference]: Without dead ends: 715 [2024-11-16 09:55:52,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:55:52,718 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 795 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:52,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 2576 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:55:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-16 09:55:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 688. [2024-11-16 09:55:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 593 states have (on average 1.4097807757166947) internal successors, (836), 602 states have internal predecessors, (836), 61 states have call successors, (61), 29 states have call predecessors, (61), 32 states have return successors, (71), 60 states have call predecessors, (71), 57 states have call successors, (71) [2024-11-16 09:55:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 968 transitions. [2024-11-16 09:55:52,743 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 968 transitions. Word has length 69 [2024-11-16 09:55:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:52,743 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 968 transitions. [2024-11-16 09:55:52,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:55:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 968 transitions. [2024-11-16 09:55:52,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:55:52,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:52,744 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 09:55:52,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:55:52,745 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:52,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:52,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1938051029, now seen corresponding path program 1 times [2024-11-16 09:55:52,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:52,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881001749] [2024-11-16 09:55:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:52,850 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 09:55:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881001749] [2024-11-16 09:55:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881001749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:52,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:52,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:55:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735130213] [2024-11-16 09:55:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:52,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:55:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:55:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:55:52,852 INFO L87 Difference]: Start difference. First operand 688 states and 968 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:55:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:54,433 INFO L93 Difference]: Finished difference Result 2204 states and 2957 transitions. [2024-11-16 09:55:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:55:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69 [2024-11-16 09:55:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:54,440 INFO L225 Difference]: With dead ends: 2204 [2024-11-16 09:55:54,440 INFO L226 Difference]: Without dead ends: 1874 [2024-11-16 09:55:54,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:55:54,442 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 3791 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3805 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:54,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3805 Valid, 2412 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:55:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2024-11-16 09:55:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1722. [2024-11-16 09:55:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1441 states have (on average 1.3254684247050659) internal successors, (1910), 1465 states have internal predecessors, (1910), 149 states have call successors, (149), 112 states have call predecessors, (149), 130 states have return successors, (185), 147 states have call predecessors, (185), 145 states have call successors, (185) [2024-11-16 09:55:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2244 transitions. [2024-11-16 09:55:54,514 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2244 transitions. Word has length 69 [2024-11-16 09:55:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:54,515 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 2244 transitions. [2024-11-16 09:55:54,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:55:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2244 transitions. [2024-11-16 09:55:54,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:55:54,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:54,516 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] [2024-11-16 09:55:54,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:55:54,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:54,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1751166202, now seen corresponding path program 1 times [2024-11-16 09:55:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540951375] [2024-11-16 09:55:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:54,628 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 09:55:54,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540951375] [2024-11-16 09:55:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540951375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:54,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:54,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:55:54,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860425661] [2024-11-16 09:55:54,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:54,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:55:54,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:54,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:55:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:55:54,630 INFO L87 Difference]: Start difference. First operand 1722 states and 2244 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 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 09:55:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:55,506 INFO L93 Difference]: Finished difference Result 3182 states and 4086 transitions. [2024-11-16 09:55:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:55:55,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 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 72 [2024-11-16 09:55:55,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:55,513 INFO L225 Difference]: With dead ends: 3182 [2024-11-16 09:55:55,513 INFO L226 Difference]: Without dead ends: 1824 [2024-11-16 09:55:55,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 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 09:55:55,516 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 802 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:55,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2573 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:55:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2024-11-16 09:55:55,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1752. [2024-11-16 09:55:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1465 states have (on average 1.3146757679180887) internal successors, (1926), 1489 states have internal predecessors, (1926), 149 states have call successors, (149), 112 states have call predecessors, (149), 136 states have return successors, (191), 153 states have call predecessors, (191), 145 states have call successors, (191) [2024-11-16 09:55:55,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2266 transitions. [2024-11-16 09:55:55,624 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2266 transitions. Word has length 72 [2024-11-16 09:55:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:55,624 INFO L471 AbstractCegarLoop]: Abstraction has 1752 states and 2266 transitions. [2024-11-16 09:55:55,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 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 09:55:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2266 transitions. [2024-11-16 09:55:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:55:55,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:55,625 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] [2024-11-16 09:55:55,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:55:55,626 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:55,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash -593500839, now seen corresponding path program 1 times [2024-11-16 09:55:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94690334] [2024-11-16 09:55:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:55,784 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 09:55:55,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:55,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94690334] [2024-11-16 09:55:55,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94690334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:55,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:55,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:55:55,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922271966] [2024-11-16 09:55:55,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:55,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:55:55,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:55,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:55:55,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:55:55,787 INFO L87 Difference]: Start difference. First operand 1752 states and 2266 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 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 09:55:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:56,745 INFO L93 Difference]: Finished difference Result 3140 states and 3946 transitions. [2024-11-16 09:55:56,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:55:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 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 72 [2024-11-16 09:55:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:56,754 INFO L225 Difference]: With dead ends: 3140 [2024-11-16 09:55:56,754 INFO L226 Difference]: Without dead ends: 2008 [2024-11-16 09:55:56,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:55:56,758 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1568 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:56,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1817 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:55:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-16 09:55:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1686. [2024-11-16 09:55:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1415 states have (on average 1.3123674911660776) internal successors, (1857), 1434 states have internal predecessors, (1857), 143 states have call successors, (143), 107 states have call predecessors, (143), 126 states have return successors, (176), 146 states have call predecessors, (176), 139 states have call successors, (176) [2024-11-16 09:55:56,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2176 transitions. [2024-11-16 09:55:56,836 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2176 transitions. Word has length 72 [2024-11-16 09:55:56,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:56,836 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2176 transitions. [2024-11-16 09:55:56,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 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 09:55:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2176 transitions. [2024-11-16 09:55:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:55:56,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:56,839 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] [2024-11-16 09:55:56,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:55:56,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:56,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:56,839 INFO L85 PathProgramCache]: Analyzing trace with hash -242700902, now seen corresponding path program 1 times [2024-11-16 09:55:56,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:56,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362156634] [2024-11-16 09:55:56,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:56,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:56,925 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 09:55:56,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362156634] [2024-11-16 09:55:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362156634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:56,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:56,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:55:56,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339904294] [2024-11-16 09:55:56,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:56,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:55:56,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:56,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:55:56,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:55:56,928 INFO L87 Difference]: Start difference. First operand 1686 states and 2176 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 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 09:55:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:57,670 INFO L93 Difference]: Finished difference Result 4285 states and 5396 transitions. [2024-11-16 09:55:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:55:57,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 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 72 [2024-11-16 09:55:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:57,681 INFO L225 Difference]: With dead ends: 4285 [2024-11-16 09:55:57,681 INFO L226 Difference]: Without dead ends: 2964 [2024-11-16 09:55:57,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:55:57,685 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1538 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:57,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 1450 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:55:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2024-11-16 09:55:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2843. [2024-11-16 09:55:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2329 states have (on average 1.2632030914555603) internal successors, (2942), 2365 states have internal predecessors, (2942), 262 states have call successors, (262), 206 states have call predecessors, (262), 250 states have return successors, (367), 274 states have call predecessors, (367), 258 states have call successors, (367) [2024-11-16 09:55:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3571 transitions. [2024-11-16 09:55:57,852 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3571 transitions. Word has length 72 [2024-11-16 09:55:57,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:57,852 INFO L471 AbstractCegarLoop]: Abstraction has 2843 states and 3571 transitions. [2024-11-16 09:55:57,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 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 09:55:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3571 transitions. [2024-11-16 09:55:57,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:55:57,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:57,854 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] [2024-11-16 09:55:57,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:55:57,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:57,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1857176699, now seen corresponding path program 1 times [2024-11-16 09:55:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:57,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158236213] [2024-11-16 09:55:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:57,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:57,914 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 09:55:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:57,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158236213] [2024-11-16 09:55:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158236213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:57,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:55:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659591131] [2024-11-16 09:55:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:57,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:55:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:55:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:55:57,917 INFO L87 Difference]: Start difference. First operand 2843 states and 3571 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:55:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:58,665 INFO L93 Difference]: Finished difference Result 6532 states and 8089 transitions. [2024-11-16 09:55:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:55:58,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-16 09:55:58,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:58,679 INFO L225 Difference]: With dead ends: 6532 [2024-11-16 09:55:58,680 INFO L226 Difference]: Without dead ends: 4059 [2024-11-16 09:55:58,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:55:58,685 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 727 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:58,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1760 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:55:58,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2024-11-16 09:55:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 3763. [2024-11-16 09:55:58,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3763 states, 3063 states have (on average 1.248122755468495) internal successors, (3823), 3104 states have internal predecessors, (3823), 354 states have call successors, (354), 286 states have call predecessors, (354), 344 states have return successors, (481), 375 states have call predecessors, (481), 350 states have call successors, (481) [2024-11-16 09:55:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3763 states to 3763 states and 4658 transitions. [2024-11-16 09:55:58,922 INFO L78 Accepts]: Start accepts. Automaton has 3763 states and 4658 transitions. Word has length 73 [2024-11-16 09:55:58,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:55:58,923 INFO L471 AbstractCegarLoop]: Abstraction has 3763 states and 4658 transitions. [2024-11-16 09:55:58,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:55:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3763 states and 4658 transitions. [2024-11-16 09:55:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:55:58,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:55:58,924 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] [2024-11-16 09:55:58,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:55:58,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:55:58,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:55:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1081130501, now seen corresponding path program 1 times [2024-11-16 09:55:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:55:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040059532] [2024-11-16 09:55:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:55:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:55:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:55:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:55:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:55:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:55:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:55:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:55:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:55:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:55:58,989 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 09:55:58,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:55:58,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040059532] [2024-11-16 09:55:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040059532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:55:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:55:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:55:58,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455979356] [2024-11-16 09:55:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:55:58,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:55:58,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:55:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:55:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:55:58,990 INFO L87 Difference]: Start difference. First operand 3763 states and 4658 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:55:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:55:59,784 INFO L93 Difference]: Finished difference Result 8090 states and 9887 transitions. [2024-11-16 09:55:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:55:59,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2024-11-16 09:55:59,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:55:59,801 INFO L225 Difference]: With dead ends: 8090 [2024-11-16 09:55:59,801 INFO L226 Difference]: Without dead ends: 4695 [2024-11-16 09:55:59,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:55:59,808 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1208 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:55:59,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1515 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:55:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2024-11-16 09:56:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4375. [2024-11-16 09:56:00,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 3561 states have (on average 1.241505195169896) internal successors, (4421), 3606 states have internal predecessors, (4421), 410 states have call successors, (410), 336 states have call predecessors, (410), 402 states have return successors, (554), 435 states have call predecessors, (554), 406 states have call successors, (554) [2024-11-16 09:56:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5385 transitions. [2024-11-16 09:56:00,064 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5385 transitions. Word has length 83 [2024-11-16 09:56:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 4375 states and 5385 transitions. [2024-11-16 09:56:00,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5385 transitions. [2024-11-16 09:56:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 09:56:00,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:00,065 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:56:00,066 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1499116086, now seen corresponding path program 1 times [2024-11-16 09:56:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970179714] [2024-11-16 09:56:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:00,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:00,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970179714] [2024-11-16 09:56:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970179714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:00,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:00,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722599752] [2024-11-16 09:56:00,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:00,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:00,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:00,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:00,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:00,158 INFO L87 Difference]: Start difference. First operand 4375 states and 5385 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:00,990 INFO L93 Difference]: Finished difference Result 5520 states and 6739 transitions. [2024-11-16 09:56:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:56:00,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 86 [2024-11-16 09:56:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:01,007 INFO L225 Difference]: With dead ends: 5520 [2024-11-16 09:56:01,007 INFO L226 Difference]: Without dead ends: 5516 [2024-11-16 09:56:01,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:01,008 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 2151 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:01,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 1149 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2024-11-16 09:56:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 4867. [2024-11-16 09:56:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4867 states, 3946 states have (on average 1.2334009123162697) internal successors, (4867), 3994 states have internal predecessors, (4867), 460 states have call successors, (460), 380 states have call predecessors, (460), 459 states have return successors, (631), 495 states have call predecessors, (631), 457 states have call successors, (631) [2024-11-16 09:56:01,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 5958 transitions. [2024-11-16 09:56:01,272 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 5958 transitions. Word has length 86 [2024-11-16 09:56:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:01,272 INFO L471 AbstractCegarLoop]: Abstraction has 4867 states and 5958 transitions. [2024-11-16 09:56:01,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 5958 transitions. [2024-11-16 09:56:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:56:01,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:01,273 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:01,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:56:01,273 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:01,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash 753433540, now seen corresponding path program 1 times [2024-11-16 09:56:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:01,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128710048] [2024-11-16 09:56:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:01,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:01,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:01,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128710048] [2024-11-16 09:56:01,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128710048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:01,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952759389] [2024-11-16 09:56:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:01,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:01,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:01,373 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 09:56:01,377 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 09:56:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:01,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 09:56:01,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:01,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:56:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:01,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952759389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:56:01,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:56:01,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-16 09:56:01,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640270328] [2024-11-16 09:56:01,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:56:01,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:56:01,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:01,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:56:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:01,782 INFO L87 Difference]: Start difference. First operand 4867 states and 5958 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:03,797 INFO L93 Difference]: Finished difference Result 9573 states and 11555 transitions. [2024-11-16 09:56:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 09:56:03,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 87 [2024-11-16 09:56:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:03,839 INFO L225 Difference]: With dead ends: 9573 [2024-11-16 09:56:03,840 INFO L226 Difference]: Without dead ends: 9569 [2024-11-16 09:56:03,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-11-16 09:56:03,842 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 1982 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:03,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 2699 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:56:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2024-11-16 09:56:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 8613. [2024-11-16 09:56:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8613 states, 6950 states have (on average 1.22) internal successors, (8479), 7033 states have internal predecessors, (8479), 819 states have call successors, (819), 694 states have call predecessors, (819), 842 states have return successors, (1132), 888 states have call predecessors, (1132), 816 states have call successors, (1132) [2024-11-16 09:56:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8613 states to 8613 states and 10430 transitions. [2024-11-16 09:56:04,356 INFO L78 Accepts]: Start accepts. Automaton has 8613 states and 10430 transitions. Word has length 87 [2024-11-16 09:56:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:04,356 INFO L471 AbstractCegarLoop]: Abstraction has 8613 states and 10430 transitions. [2024-11-16 09:56:04,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8613 states and 10430 transitions. [2024-11-16 09:56:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:56:04,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:04,358 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:04,373 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 09:56:04,559 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,SelfDestructingSolverStorable11 [2024-11-16 09:56:04,560 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:04,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:04,560 INFO L85 PathProgramCache]: Analyzing trace with hash -396978200, now seen corresponding path program 2 times [2024-11-16 09:56:04,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:04,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70918485] [2024-11-16 09:56:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:04,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:04,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:04,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70918485] [2024-11-16 09:56:04,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70918485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:04,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:04,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:04,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974182413] [2024-11-16 09:56:04,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:04,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:04,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:04,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:04,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:04,640 INFO L87 Difference]: Start difference. First operand 8613 states and 10430 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:05,448 INFO L93 Difference]: Finished difference Result 11499 states and 13931 transitions. [2024-11-16 09:56:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:56:05,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 92 [2024-11-16 09:56:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:05,463 INFO L225 Difference]: With dead ends: 11499 [2024-11-16 09:56:05,463 INFO L226 Difference]: Without dead ends: 4713 [2024-11-16 09:56:05,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:05,472 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 1153 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:05,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 1601 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4713 states. [2024-11-16 09:56:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4713 to 3579. [2024-11-16 09:56:05,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 2922 states have (on average 1.2265571526351813) internal successors, (3584), 2951 states have internal predecessors, (3584), 338 states have call successors, (338), 276 states have call predecessors, (338), 317 states have return successors, (431), 354 states have call predecessors, (431), 335 states have call successors, (431) [2024-11-16 09:56:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4353 transitions. [2024-11-16 09:56:05,788 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4353 transitions. Word has length 92 [2024-11-16 09:56:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:05,788 INFO L471 AbstractCegarLoop]: Abstraction has 3579 states and 4353 transitions. [2024-11-16 09:56:05,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4353 transitions. [2024-11-16 09:56:05,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:56:05,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:05,791 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:56:05,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:56:05,792 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:05,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:05,792 INFO L85 PathProgramCache]: Analyzing trace with hash -328727544, now seen corresponding path program 1 times [2024-11-16 09:56:05,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:05,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028515475] [2024-11-16 09:56:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:05,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:56:05,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:05,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028515475] [2024-11-16 09:56:05,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028515475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:05,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:05,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:05,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134468454] [2024-11-16 09:56:05,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:05,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:05,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:05,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:05,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:05,902 INFO L87 Difference]: Start difference. First operand 3579 states and 4353 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:07,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:07,477 INFO L93 Difference]: Finished difference Result 9903 states and 11884 transitions. [2024-11-16 09:56:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 09:56:07,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-16 09:56:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:07,514 INFO L225 Difference]: With dead ends: 9903 [2024-11-16 09:56:07,517 INFO L226 Difference]: Without dead ends: 5824 [2024-11-16 09:56:07,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:56:07,533 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 1382 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:07,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 1898 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2024-11-16 09:56:08,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 5559. [2024-11-16 09:56:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5559 states, 4467 states have (on average 1.197671815536154) internal successors, (5350), 4533 states have internal predecessors, (5350), 538 states have call successors, (538), 448 states have call predecessors, (538), 552 states have return successors, (781), 580 states have call predecessors, (781), 535 states have call successors, (781) [2024-11-16 09:56:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5559 states to 5559 states and 6669 transitions. [2024-11-16 09:56:08,036 INFO L78 Accepts]: Start accepts. Automaton has 5559 states and 6669 transitions. Word has length 94 [2024-11-16 09:56:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:08,037 INFO L471 AbstractCegarLoop]: Abstraction has 5559 states and 6669 transitions. [2024-11-16 09:56:08,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5559 states and 6669 transitions. [2024-11-16 09:56:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:56:08,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:08,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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 09:56:08,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:56:08,039 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:08,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1717766876, now seen corresponding path program 1 times [2024-11-16 09:56:08,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:08,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203435372] [2024-11-16 09:56:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:08,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:56:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 09:56:08,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203435372] [2024-11-16 09:56:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203435372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:08,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:08,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286907833] [2024-11-16 09:56:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:08,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:08,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:08,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:08,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:08,162 INFO L87 Difference]: Start difference. First operand 5559 states and 6669 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 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 09:56:09,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:09,371 INFO L93 Difference]: Finished difference Result 9230 states and 10998 transitions. [2024-11-16 09:56:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 09:56:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 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 112 [2024-11-16 09:56:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:09,384 INFO L225 Difference]: With dead ends: 9230 [2024-11-16 09:56:09,385 INFO L226 Difference]: Without dead ends: 4604 [2024-11-16 09:56:09,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-16 09:56:09,393 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 2587 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:09,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 1926 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-16 09:56:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4158. [2024-11-16 09:56:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3332 states have (on average 1.18937575030012) internal successors, (3963), 3386 states have internal predecessors, (3963), 403 states have call successors, (403), 330 states have call predecessors, (403), 421 states have return successors, (550), 444 states have call predecessors, (550), 400 states have call successors, (550) [2024-11-16 09:56:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 4916 transitions. [2024-11-16 09:56:09,726 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 4916 transitions. Word has length 112 [2024-11-16 09:56:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:09,726 INFO L471 AbstractCegarLoop]: Abstraction has 4158 states and 4916 transitions. [2024-11-16 09:56:09,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 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 09:56:09,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 4916 transitions. [2024-11-16 09:56:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 09:56:09,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:09,733 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:56:09,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:56:09,733 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:09,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:09,733 INFO L85 PathProgramCache]: Analyzing trace with hash -893228595, now seen corresponding path program 1 times [2024-11-16 09:56:09,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:09,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462975326] [2024-11-16 09:56:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:09,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:56:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 09:56:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 09:56:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 09:56:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 09:56:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 09:56:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 09:56:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462975326] [2024-11-16 09:56:09,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462975326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:09,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767140577] [2024-11-16 09:56:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:09,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:09,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:56:09,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:56:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 09:56:10,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:56:10,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:56:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767140577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:10,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:56:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-16 09:56:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554395996] [2024-11-16 09:56:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:10,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:10,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:10,057 INFO L87 Difference]: Start difference. First operand 4158 states and 4916 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:10,191 INFO L93 Difference]: Finished difference Result 6159 states and 7234 transitions. [2024-11-16 09:56:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:56:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 159 [2024-11-16 09:56:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:10,199 INFO L225 Difference]: With dead ends: 6159 [2024-11-16 09:56:10,199 INFO L226 Difference]: Without dead ends: 2371 [2024-11-16 09:56:10,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:10,203 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 0 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:10,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3341 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:56:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-11-16 09:56:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2024-11-16 09:56:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 1991 states have (on average 1.2014063284781518) internal successors, (2392), 2008 states have internal predecessors, (2392), 192 states have call successors, (192), 144 states have call predecessors, (192), 186 states have return successors, (257), 219 states have call predecessors, (257), 189 states have call successors, (257) [2024-11-16 09:56:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 2841 transitions. [2024-11-16 09:56:10,327 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 2841 transitions. Word has length 159 [2024-11-16 09:56:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:10,327 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 2841 transitions. [2024-11-16 09:56:10,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 2841 transitions. [2024-11-16 09:56:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:10,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:10,330 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 09:56:10,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:56:10,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 09:56:10,531 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:10,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash 575497337, now seen corresponding path program 1 times [2024-11-16 09:56:10,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:10,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33785687] [2024-11-16 09:56:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:10,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 09:56:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 09:56:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 09:56:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 09:56:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 09:56:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:56:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-16 09:56:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33785687] [2024-11-16 09:56:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33785687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515318199] [2024-11-16 09:56:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:10,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:10,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:10,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:10,608 INFO L87 Difference]: Start difference. First operand 2371 states and 2841 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:11,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:11,274 INFO L93 Difference]: Finished difference Result 2420 states and 2892 transitions. [2024-11-16 09:56:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 161 [2024-11-16 09:56:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:11,282 INFO L225 Difference]: With dead ends: 2420 [2024-11-16 09:56:11,282 INFO L226 Difference]: Without dead ends: 2011 [2024-11-16 09:56:11,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:11,283 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 912 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:11,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1360 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:56:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2024-11-16 09:56:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1966. [2024-11-16 09:56:11,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1670 states have (on average 1.2167664670658682) internal successors, (2032), 1684 states have internal predecessors, (2032), 151 states have call successors, (151), 109 states have call predecessors, (151), 143 states have return successors, (202), 173 states have call predecessors, (202), 148 states have call successors, (202) [2024-11-16 09:56:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2385 transitions. [2024-11-16 09:56:11,469 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2385 transitions. Word has length 161 [2024-11-16 09:56:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:11,469 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2385 transitions. [2024-11-16 09:56:11,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2385 transitions. [2024-11-16 09:56:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:11,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:11,472 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] [2024-11-16 09:56:11,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:56:11,472 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:11,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:11,473 INFO L85 PathProgramCache]: Analyzing trace with hash -770481626, now seen corresponding path program 1 times [2024-11-16 09:56:11,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:11,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151731732] [2024-11-16 09:56:11,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:11,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,606 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 09:56:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:11,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151731732] [2024-11-16 09:56:11,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151731732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:11,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:11,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:56:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556018714] [2024-11-16 09:56:11,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:11,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:56:11,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:56:11,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:56:11,609 INFO L87 Difference]: Start difference. First operand 1966 states and 2385 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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 09:56:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:13,321 INFO L93 Difference]: Finished difference Result 2422 states and 3091 transitions. [2024-11-16 09:56:13,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:13,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:13,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:13,332 INFO L225 Difference]: With dead ends: 2422 [2024-11-16 09:56:13,332 INFO L226 Difference]: Without dead ends: 2075 [2024-11-16 09:56:13,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:13,337 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 973 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:13,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1044 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:56:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-16 09:56:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1966. [2024-11-16 09:56:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1670 states have (on average 1.2161676646706587) internal successors, (2031), 1684 states have internal predecessors, (2031), 151 states have call successors, (151), 109 states have call predecessors, (151), 143 states have return successors, (202), 173 states have call predecessors, (202), 148 states have call successors, (202) [2024-11-16 09:56:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2384 transitions. [2024-11-16 09:56:13,650 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2384 transitions. Word has length 151 [2024-11-16 09:56:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:13,650 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2384 transitions. [2024-11-16 09:56:13,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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 09:56:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2384 transitions. [2024-11-16 09:56:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:13,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:13,653 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] [2024-11-16 09:56:13,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:56:13,653 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:13,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:13,653 INFO L85 PathProgramCache]: Analyzing trace with hash -692491355, now seen corresponding path program 1 times [2024-11-16 09:56:13,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:13,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519717312] [2024-11-16 09:56:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:13,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,821 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 09:56:13,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:13,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519717312] [2024-11-16 09:56:13,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519717312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:13,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:13,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:13,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134654949] [2024-11-16 09:56:13,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:13,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:13,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:13,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:13,824 INFO L87 Difference]: Start difference. First operand 1966 states and 2384 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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 09:56:15,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:15,794 INFO L93 Difference]: Finished difference Result 2872 states and 3787 transitions. [2024-11-16 09:56:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:15,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:15,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:15,801 INFO L225 Difference]: With dead ends: 2872 [2024-11-16 09:56:15,801 INFO L226 Difference]: Without dead ends: 2534 [2024-11-16 09:56:15,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:15,803 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1513 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:15,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1553 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:56:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2024-11-16 09:56:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2314. [2024-11-16 09:56:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1993 states have (on average 1.26392373306573) internal successors, (2519), 2008 states have internal predecessors, (2519), 169 states have call successors, (169), 115 states have call predecessors, (169), 150 states have return successors, (223), 191 states have call predecessors, (223), 166 states have call successors, (223) [2024-11-16 09:56:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2911 transitions. [2024-11-16 09:56:16,042 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2911 transitions. Word has length 151 [2024-11-16 09:56:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:16,042 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 2911 transitions. [2024-11-16 09:56:16,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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 09:56:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2911 transitions. [2024-11-16 09:56:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:16,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:16,045 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] [2024-11-16 09:56:16,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:56:16,045 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:16,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1629299175, now seen corresponding path program 1 times [2024-11-16 09:56:16,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:16,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477785092] [2024-11-16 09:56:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,189 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 09:56:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:16,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477785092] [2024-11-16 09:56:16,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477785092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:16,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:16,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:16,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755095995] [2024-11-16 09:56:16,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:16,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:16,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:16,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:16,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:16,191 INFO L87 Difference]: Start difference. First operand 2314 states and 2911 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:18,811 INFO L93 Difference]: Finished difference Result 3690 states and 5044 transitions. [2024-11-16 09:56:18,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:18,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:18,819 INFO L225 Difference]: With dead ends: 3690 [2024-11-16 09:56:18,819 INFO L226 Difference]: Without dead ends: 3004 [2024-11-16 09:56:18,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:18,821 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 1530 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 3063 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:18,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2867 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3063 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:56:18,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2024-11-16 09:56:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2641. [2024-11-16 09:56:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2641 states, 2295 states have (on average 1.2919389978213507) internal successors, (2965), 2311 states have internal predecessors, (2965), 187 states have call successors, (187), 121 states have call predecessors, (187), 157 states have return successors, (243), 210 states have call predecessors, (243), 184 states have call successors, (243) [2024-11-16 09:56:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 3395 transitions. [2024-11-16 09:56:19,071 INFO L78 Accepts]: Start accepts. Automaton has 2641 states and 3395 transitions. Word has length 151 [2024-11-16 09:56:19,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:19,071 INFO L471 AbstractCegarLoop]: Abstraction has 2641 states and 3395 transitions. [2024-11-16 09:56:19,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2641 states and 3395 transitions. [2024-11-16 09:56:19,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:19,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:19,073 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] [2024-11-16 09:56:19,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:56:19,074 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:19,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash -180604410, now seen corresponding path program 1 times [2024-11-16 09:56:19,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:19,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347597368] [2024-11-16 09:56:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,214 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 09:56:19,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:19,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347597368] [2024-11-16 09:56:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347597368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:19,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:19,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:19,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522305526] [2024-11-16 09:56:19,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:19,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:19,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:19,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:19,217 INFO L87 Difference]: Start difference. First operand 2641 states and 3395 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:21,742 INFO L93 Difference]: Finished difference Result 4898 states and 6886 transitions. [2024-11-16 09:56:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:21,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:21,754 INFO L225 Difference]: With dead ends: 4898 [2024-11-16 09:56:21,754 INFO L226 Difference]: Without dead ends: 3885 [2024-11-16 09:56:21,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:21,760 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1528 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 3059 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:21,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 2865 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3059 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2024-11-16 09:56:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3296. [2024-11-16 09:56:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 2900 states have (on average 1.3303448275862069) internal successors, (3858), 2918 states have internal predecessors, (3858), 223 states have call successors, (223), 133 states have call predecessors, (223), 171 states have return successors, (287), 248 states have call predecessors, (287), 220 states have call successors, (287) [2024-11-16 09:56:22,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 4368 transitions. [2024-11-16 09:56:22,251 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 4368 transitions. Word has length 151 [2024-11-16 09:56:22,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:22,251 INFO L471 AbstractCegarLoop]: Abstraction has 3296 states and 4368 transitions. [2024-11-16 09:56:22,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 4368 transitions. [2024-11-16 09:56:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:22,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:22,254 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] [2024-11-16 09:56:22,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:56:22,255 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:22,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:22,255 INFO L85 PathProgramCache]: Analyzing trace with hash -654630393, now seen corresponding path program 1 times [2024-11-16 09:56:22,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:22,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541251700] [2024-11-16 09:56:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:22,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,410 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 09:56:22,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:22,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541251700] [2024-11-16 09:56:22,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541251700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:22,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:22,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:22,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025436921] [2024-11-16 09:56:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:22,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:22,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:22,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:22,412 INFO L87 Difference]: Start difference. First operand 3296 states and 4368 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:25,148 INFO L93 Difference]: Finished difference Result 7233 states and 10423 transitions. [2024-11-16 09:56:25,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:25,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:25,159 INFO L225 Difference]: With dead ends: 7233 [2024-11-16 09:56:25,159 INFO L226 Difference]: Without dead ends: 5565 [2024-11-16 09:56:25,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:25,162 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1524 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:25,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 2865 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:56:25,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2024-11-16 09:56:25,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 4607. [2024-11-16 09:56:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4607 states, 4111 states have (on average 1.3729019703235223) internal successors, (5644), 4133 states have internal predecessors, (5644), 295 states have call successors, (295), 157 states have call predecessors, (295), 199 states have return successors, (381), 324 states have call predecessors, (381), 292 states have call successors, (381) [2024-11-16 09:56:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4607 states to 4607 states and 6320 transitions. [2024-11-16 09:56:25,470 INFO L78 Accepts]: Start accepts. Automaton has 4607 states and 6320 transitions. Word has length 151 [2024-11-16 09:56:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:25,470 INFO L471 AbstractCegarLoop]: Abstraction has 4607 states and 6320 transitions. [2024-11-16 09:56:25,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4607 states and 6320 transitions. [2024-11-16 09:56:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:25,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:25,473 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] [2024-11-16 09:56:25,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:56:25,473 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:25,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:25,473 INFO L85 PathProgramCache]: Analyzing trace with hash -947016218, now seen corresponding path program 1 times [2024-11-16 09:56:25,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:25,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200930875] [2024-11-16 09:56:25,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,620 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 09:56:25,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:25,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200930875] [2024-11-16 09:56:25,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200930875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:25,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:25,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:25,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31948275] [2024-11-16 09:56:25,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:25,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:25,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:25,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:25,621 INFO L87 Difference]: Start difference. First operand 4607 states and 6320 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:28,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:28,463 INFO L93 Difference]: Finished difference Result 11902 states and 17513 transitions. [2024-11-16 09:56:28,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:28,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:28,480 INFO L225 Difference]: With dead ends: 11902 [2024-11-16 09:56:28,480 INFO L226 Difference]: Without dead ends: 8923 [2024-11-16 09:56:28,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:28,485 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1520 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 3136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:28,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 2865 Invalid, 3136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:56:28,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8923 states. [2024-11-16 09:56:28,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8923 to 7234. [2024-11-16 09:56:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 6538 states have (on average 1.410523095747935) internal successors, (9222), 6568 states have internal predecessors, (9222), 439 states have call successors, (439), 205 states have call predecessors, (439), 255 states have return successors, (587), 476 states have call predecessors, (587), 436 states have call successors, (587) [2024-11-16 09:56:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 10248 transitions. [2024-11-16 09:56:28,915 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 10248 transitions. Word has length 151 [2024-11-16 09:56:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:28,915 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 10248 transitions. [2024-11-16 09:56:28,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 10248 transitions. [2024-11-16 09:56:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:28,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:28,919 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] [2024-11-16 09:56:28,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:56:28,919 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:28,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 983214631, now seen corresponding path program 1 times [2024-11-16 09:56:28,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:28,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574496795] [2024-11-16 09:56:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:28,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:28,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,052 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 09:56:29,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574496795] [2024-11-16 09:56:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574496795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:29,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:29,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:29,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829943186] [2024-11-16 09:56:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:29,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:29,055 INFO L87 Difference]: Start difference. First operand 7234 states and 10248 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:30,701 INFO L93 Difference]: Finished difference Result 14604 states and 21661 transitions. [2024-11-16 09:56:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:30,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:30,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:30,726 INFO L225 Difference]: With dead ends: 14604 [2024-11-16 09:56:30,726 INFO L226 Difference]: Without dead ends: 8998 [2024-11-16 09:56:30,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:30,739 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1368 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:30,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 1311 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8998 states. [2024-11-16 09:56:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8998 to 7234. [2024-11-16 09:56:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 6538 states have (on average 1.4079229122055674) internal successors, (9205), 6568 states have internal predecessors, (9205), 439 states have call successors, (439), 205 states have call predecessors, (439), 255 states have return successors, (587), 476 states have call predecessors, (587), 436 states have call successors, (587) [2024-11-16 09:56:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 10231 transitions. [2024-11-16 09:56:31,295 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 10231 transitions. Word has length 151 [2024-11-16 09:56:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:31,295 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 10231 transitions. [2024-11-16 09:56:31,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 10231 transitions. [2024-11-16 09:56:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:31,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:31,301 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] [2024-11-16 09:56:31,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:56:31,301 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 768385478, now seen corresponding path program 1 times [2024-11-16 09:56:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739092705] [2024-11-16 09:56:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,465 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 09:56:31,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:31,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739092705] [2024-11-16 09:56:31,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739092705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:31,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:31,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:31,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937752720] [2024-11-16 09:56:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:31,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:31,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:31,467 INFO L87 Difference]: Start difference. First operand 7234 states and 10231 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:33,350 INFO L93 Difference]: Finished difference Result 14586 states and 21575 transitions. [2024-11-16 09:56:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:33,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:33,369 INFO L225 Difference]: With dead ends: 14586 [2024-11-16 09:56:33,370 INFO L226 Difference]: Without dead ends: 8980 [2024-11-16 09:56:33,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:33,379 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1182 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:33,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 1585 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:56:33,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8980 states. [2024-11-16 09:56:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8980 to 7234. [2024-11-16 09:56:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 6538 states have (on average 1.4053227286631997) internal successors, (9188), 6568 states have internal predecessors, (9188), 439 states have call successors, (439), 205 states have call predecessors, (439), 255 states have return successors, (587), 476 states have call predecessors, (587), 436 states have call successors, (587) [2024-11-16 09:56:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 10214 transitions. [2024-11-16 09:56:33,899 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 10214 transitions. Word has length 151 [2024-11-16 09:56:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:33,899 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 10214 transitions. [2024-11-16 09:56:33,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 10214 transitions. [2024-11-16 09:56:33,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:33,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:33,903 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] [2024-11-16 09:56:33,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:56:33,903 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:33,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:33,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1732396473, now seen corresponding path program 1 times [2024-11-16 09:56:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:33,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729522784] [2024-11-16 09:56:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:33,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:34,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:34,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:34,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:34,029 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 09:56:34,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:34,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729522784] [2024-11-16 09:56:34,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729522784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:34,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:34,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469298481] [2024-11-16 09:56:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:34,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:34,031 INFO L87 Difference]: Start difference. First operand 7234 states and 10214 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:35,520 INFO L93 Difference]: Finished difference Result 14567 states and 21487 transitions. [2024-11-16 09:56:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:35,543 INFO L225 Difference]: With dead ends: 14567 [2024-11-16 09:56:35,543 INFO L226 Difference]: Without dead ends: 8961 [2024-11-16 09:56:35,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:35,555 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1364 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:35,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 1311 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8961 states. [2024-11-16 09:56:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8961 to 7234. [2024-11-16 09:56:36,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 6538 states have (on average 1.402722545120832) internal successors, (9171), 6568 states have internal predecessors, (9171), 439 states have call successors, (439), 205 states have call predecessors, (439), 255 states have return successors, (587), 476 states have call predecessors, (587), 436 states have call successors, (587) [2024-11-16 09:56:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 10197 transitions. [2024-11-16 09:56:36,090 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 10197 transitions. Word has length 151 [2024-11-16 09:56:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:36,090 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 10197 transitions. [2024-11-16 09:56:36,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 10197 transitions. [2024-11-16 09:56:36,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:36,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:36,095 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] [2024-11-16 09:56:36,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 09:56:36,095 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:36,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1258877530, now seen corresponding path program 1 times [2024-11-16 09:56:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427355770] [2024-11-16 09:56:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:36,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,242 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 09:56:36,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:36,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427355770] [2024-11-16 09:56:36,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427355770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:36,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:36,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:36,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558861907] [2024-11-16 09:56:36,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:36,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:36,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:36,244 INFO L87 Difference]: Start difference. First operand 7234 states and 10197 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:39,299 INFO L93 Difference]: Finished difference Result 21180 states and 31387 transitions. [2024-11-16 09:56:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:39,350 INFO L225 Difference]: With dead ends: 21180 [2024-11-16 09:56:39,354 INFO L226 Difference]: Without dead ends: 15574 [2024-11-16 09:56:39,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:39,371 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1492 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:39,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 2865 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15574 states. [2024-11-16 09:56:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15574 to 12549. [2024-11-16 09:56:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12549 states, 11453 states have (on average 1.4273989347769143) internal successors, (16348), 11499 states have internal predecessors, (16348), 727 states have call successors, (727), 301 states have call predecessors, (727), 367 states have return successors, (1053), 780 states have call predecessors, (1053), 724 states have call successors, (1053) [2024-11-16 09:56:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12549 states to 12549 states and 18128 transitions. [2024-11-16 09:56:40,162 INFO L78 Accepts]: Start accepts. Automaton has 12549 states and 18128 transitions. Word has length 151 [2024-11-16 09:56:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:40,162 INFO L471 AbstractCegarLoop]: Abstraction has 12549 states and 18128 transitions. [2024-11-16 09:56:40,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 12549 states and 18128 transitions. [2024-11-16 09:56:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:40,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:40,168 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] [2024-11-16 09:56:40,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 09:56:40,168 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:40,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:40,169 INFO L85 PathProgramCache]: Analyzing trace with hash -827960729, now seen corresponding path program 1 times [2024-11-16 09:56:40,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060402493] [2024-11-16 09:56:40,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:40,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,295 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 09:56:40,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:40,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060402493] [2024-11-16 09:56:40,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060402493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:40,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:40,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:40,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008100773] [2024-11-16 09:56:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:40,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:40,297 INFO L87 Difference]: Start difference. First operand 12549 states and 18128 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:42,164 INFO L93 Difference]: Finished difference Result 26631 states and 39801 transitions. [2024-11-16 09:56:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:42,200 INFO L225 Difference]: With dead ends: 26631 [2024-11-16 09:56:42,200 INFO L226 Difference]: Without dead ends: 15710 [2024-11-16 09:56:42,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:42,221 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1363 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:42,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 1311 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:56:42,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15710 states. [2024-11-16 09:56:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15710 to 12549. [2024-11-16 09:56:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12549 states, 11453 states have (on average 1.4245175936435868) internal successors, (16315), 11499 states have internal predecessors, (16315), 727 states have call successors, (727), 301 states have call predecessors, (727), 367 states have return successors, (1053), 780 states have call predecessors, (1053), 724 states have call successors, (1053) [2024-11-16 09:56:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12549 states to 12549 states and 18095 transitions. [2024-11-16 09:56:43,056 INFO L78 Accepts]: Start accepts. Automaton has 12549 states and 18095 transitions. Word has length 151 [2024-11-16 09:56:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:43,056 INFO L471 AbstractCegarLoop]: Abstraction has 12549 states and 18095 transitions. [2024-11-16 09:56:43,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 12549 states and 18095 transitions. [2024-11-16 09:56:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:43,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:43,062 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] [2024-11-16 09:56:43,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 09:56:43,062 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:43,063 INFO L85 PathProgramCache]: Analyzing trace with hash 294318470, now seen corresponding path program 1 times [2024-11-16 09:56:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508803507] [2024-11-16 09:56:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:43,206 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 09:56:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:43,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508803507] [2024-11-16 09:56:43,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508803507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:43,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:43,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:43,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414473518] [2024-11-16 09:56:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:43,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:43,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:43,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:43,207 INFO L87 Difference]: Start difference. First operand 12549 states and 18095 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:47,627 INFO L93 Difference]: Finished difference Result 44133 states and 66126 transitions. [2024-11-16 09:56:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:56:47,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:47,694 INFO L225 Difference]: With dead ends: 44133 [2024-11-16 09:56:47,694 INFO L226 Difference]: Without dead ends: 33212 [2024-11-16 09:56:47,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:47,714 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 1849 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:47,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 2855 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:56:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33212 states. [2024-11-16 09:56:49,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33212 to 23139. [2024-11-16 09:56:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23139 states, 21275 states have (on average 1.4400940070505288) internal successors, (30638), 21353 states have internal predecessors, (30638), 1271 states have call successors, (1271), 493 states have call predecessors, (1271), 591 states have return successors, (2115), 1356 states have call predecessors, (2115), 1268 states have call successors, (2115) [2024-11-16 09:56:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23139 states to 23139 states and 34024 transitions. [2024-11-16 09:56:49,110 INFO L78 Accepts]: Start accepts. Automaton has 23139 states and 34024 transitions. Word has length 151 [2024-11-16 09:56:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:49,110 INFO L471 AbstractCegarLoop]: Abstraction has 23139 states and 34024 transitions. [2024-11-16 09:56:49,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23139 states and 34024 transitions. [2024-11-16 09:56:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:49,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:49,121 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] [2024-11-16 09:56:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 09:56:49,121 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:49,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1609141625, now seen corresponding path program 1 times [2024-11-16 09:56:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367889755] [2024-11-16 09:56:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:49,250 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 09:56:49,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:49,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367889755] [2024-11-16 09:56:49,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367889755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:49,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:49,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:49,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696429072] [2024-11-16 09:56:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:49,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:49,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:49,252 INFO L87 Difference]: Start difference. First operand 23139 states and 34024 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:54,869 INFO L93 Difference]: Finished difference Result 84663 states and 128207 transitions. [2024-11-16 09:56:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:56:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:56:54,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:55,049 INFO L225 Difference]: With dead ends: 84663 [2024-11-16 09:56:55,049 INFO L226 Difference]: Without dead ends: 63152 [2024-11-16 09:56:55,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:55,100 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 1804 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:55,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2846 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:56:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63152 states. [2024-11-16 09:56:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63152 to 43387. [2024-11-16 09:56:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43387 states, 40019 states have (on average 1.4468127639371298) internal successors, (57900), 40161 states have internal predecessors, (57900), 2327 states have call successors, (2327), 877 states have call predecessors, (2327), 1039 states have return successors, (4693), 2476 states have call predecessors, (4693), 2324 states have call successors, (4693) [2024-11-16 09:56:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43387 states to 43387 states and 64920 transitions. [2024-11-16 09:56:57,995 INFO L78 Accepts]: Start accepts. Automaton has 43387 states and 64920 transitions. Word has length 151 [2024-11-16 09:56:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:57,995 INFO L471 AbstractCegarLoop]: Abstraction has 43387 states and 64920 transitions. [2024-11-16 09:56:57,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:56:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 43387 states and 64920 transitions. [2024-11-16 09:56:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 09:56:58,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:58,031 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] [2024-11-16 09:56:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 09:56:58,032 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:58,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash -7975578, now seen corresponding path program 1 times [2024-11-16 09:56:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:58,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645022544] [2024-11-16 09:56:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:58,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:56:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:56:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:56:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:56:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:58,295 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 09:56:58,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:58,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645022544] [2024-11-16 09:56:58,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645022544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:58,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:58,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:58,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377001922] [2024-11-16 09:56:58,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:58,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:58,300 INFO L87 Difference]: Start difference. First operand 43387 states and 64920 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 09:57:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:07,694 INFO L93 Difference]: Finished difference Result 162041 states and 248325 transitions. [2024-11-16 09:57:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:07,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-11-16 09:57:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:08,177 INFO L225 Difference]: With dead ends: 162041 [2024-11-16 09:57:08,177 INFO L226 Difference]: Without dead ends: 120282 [2024-11-16 09:57:08,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:08,288 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 1763 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:08,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 2855 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:57:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states.