./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2299ca1c26d35c3e5f6d860495fd40e041317a8644bf02bee237b59c63427ec2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:56:09,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:56:09,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:56:09,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:56:09,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:56:09,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:56:09,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:56:09,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:56:09,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:56:09,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:56:09,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:56:09,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:56:09,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:56:09,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:56:09,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:56:09,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:56:09,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:56:09,997 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:56:09,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:56:09,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:56:09,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:56:09,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:56:09,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:56:09,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:56:09,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:56:09,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:56:09,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:56:09,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:56:10,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:56:10,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:56:10,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:56:10,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:56:10,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:56:10,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:56:10,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:56:10,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:56:10,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:56:10,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:56:10,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:56:10,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:56:10,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:56:10,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:56:10,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2299ca1c26d35c3e5f6d860495fd40e041317a8644bf02bee237b59c63427ec2 [2024-11-11 22:56:10,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:56:10,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:56:10,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:56:10,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:56:10,239 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:56:10,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-11 22:56:11,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:56:11,642 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:56:11,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-11 22:56:11,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ca5dd46/8cc11a9150484a38b5e1de3231b7534b/FLAGabb19726c [2024-11-11 22:56:11,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ca5dd46/8cc11a9150484a38b5e1de3231b7534b [2024-11-11 22:56:11,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:56:11,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:56:11,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:56:11,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:56:11,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:56:11,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:56:11" (1/1) ... [2024-11-11 22:56:11,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11fdfa54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:11, skipping insertion in model container [2024-11-11 22:56:11,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:56:11" (1/1) ... [2024-11-11 22:56:11,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:56:11,863 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.06.cil-1.c[914,927] [2024-11-11 22:56:11,898 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.06.cil-1.c[7115,7128] [2024-11-11 22:56:11,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:56:11,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:56:11,961 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.06.cil-1.c[914,927] [2024-11-11 22:56:11,976 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.06.cil-1.c[7115,7128] [2024-11-11 22:56:12,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:56:12,030 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:56:12,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12 WrapperNode [2024-11-11 22:56:12,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:56:12,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:56:12,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:56:12,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:56:12,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,120 INFO L138 Inliner]: procedures = 65, calls = 76, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 714 [2024-11-11 22:56:12,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:56:12,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:56:12,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:56:12,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:56:12,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,148 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:56:12,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:56:12,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:56:12,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:56:12,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:56:12,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (1/1) ... [2024-11-11 22:56:12,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:56:12,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:12,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:56:12,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:56:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:56:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:56:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:56:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:56:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:56:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:56:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:56:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:56:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:56:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:56:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:56:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:56:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:56:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:56:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:56:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:56:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:56:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:56:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:56:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:56:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:56:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:56:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:56:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:56:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:56:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:56:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:56:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:56:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:56:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:56:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:56:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:56:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:56:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:56:12,341 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:56:12,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:56:12,922 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-11 22:56:12,922 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:56:12,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:56:12,943 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-11 22:56:12,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:56:12 BoogieIcfgContainer [2024-11-11 22:56:12,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:56:12,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:56:12,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:56:12,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:56:12,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:56:11" (1/3) ... [2024-11-11 22:56:12,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f77b2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:56:12, skipping insertion in model container [2024-11-11 22:56:12,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:56:12" (2/3) ... [2024-11-11 22:56:12,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f77b2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:56:12, skipping insertion in model container [2024-11-11 22:56:12,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:56:12" (3/3) ... [2024-11-11 22:56:12,952 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.06.cil-1.c [2024-11-11 22:56:12,965 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:56:12,965 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:56:13,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:56:13,032 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;@69d74788, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:56:13,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:56:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 294 states have (on average 1.598639455782313) internal successors, (470), 302 states have internal predecessors, (470), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-11 22:56:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:13,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:13,047 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:13,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:13,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1937150767, now seen corresponding path program 1 times [2024-11-11 22:56:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:13,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369533791] [2024-11-11 22:56:13,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:13,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:13,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369533791] [2024-11-11 22:56:13,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369533791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:13,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:13,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309949964] [2024-11-11 22:56:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:13,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:13,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:13,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:13,544 INFO L87 Difference]: Start difference. First operand has 348 states, 294 states have (on average 1.598639455782313) internal successors, (470), 302 states have internal predecessors, (470), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:14,492 INFO L93 Difference]: Finished difference Result 808 states and 1254 transitions. [2024-11-11 22:56:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:14,515 INFO L225 Difference]: With dead ends: 808 [2024-11-11 22:56:14,515 INFO L226 Difference]: Without dead ends: 472 [2024-11-11 22:56:14,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:14,525 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 856 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:14,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1522 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-11 22:56:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 433. [2024-11-11 22:56:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 362 states have (on average 1.4834254143646408) internal successors, (537), 369 states have internal predecessors, (537), 47 states have call successors, (47), 22 states have call predecessors, (47), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-11 22:56:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 632 transitions. [2024-11-11 22:56:14,620 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 632 transitions. Word has length 65 [2024-11-11 22:56:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:14,621 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 632 transitions. [2024-11-11 22:56:14,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 632 transitions. [2024-11-11 22:56:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:14,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:14,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:14,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:56:14,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:14,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash -258262127, now seen corresponding path program 1 times [2024-11-11 22:56:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78306400] [2024-11-11 22:56:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:14,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78306400] [2024-11-11 22:56:14,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78306400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:14,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:14,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796210603] [2024-11-11 22:56:14,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:14,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:14,867 INFO L87 Difference]: Start difference. First operand 433 states and 632 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:15,804 INFO L93 Difference]: Finished difference Result 780 states and 1109 transitions. [2024-11-11 22:56:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:56:15,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:15,809 INFO L225 Difference]: With dead ends: 780 [2024-11-11 22:56:15,810 INFO L226 Difference]: Without dead ends: 603 [2024-11-11 22:56:15,811 INFO L434 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 [2024-11-11 22:56:15,816 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 964 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:15,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1757 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:15,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-11 22:56:15,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 529. [2024-11-11 22:56:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 438 states have (on average 1.4634703196347032) internal successors, (641), 447 states have internal predecessors, (641), 58 states have call successors, (58), 29 states have call predecessors, (58), 31 states have return successors, (67), 56 states have call predecessors, (67), 54 states have call successors, (67) [2024-11-11 22:56:15,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 766 transitions. [2024-11-11 22:56:15,890 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 766 transitions. Word has length 65 [2024-11-11 22:56:15,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:15,890 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 766 transitions. [2024-11-11 22:56:15,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 766 transitions. [2024-11-11 22:56:15,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:15,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:15,892 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:15,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:56:15,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:15,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2008119059, now seen corresponding path program 1 times [2024-11-11 22:56:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788141040] [2024-11-11 22:56:15,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:15,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:15,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:15,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:15,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:16,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:16,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788141040] [2024-11-11 22:56:16,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788141040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:16,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:16,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:16,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28584820] [2024-11-11 22:56:16,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:16,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:16,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:16,080 INFO L87 Difference]: Start difference. First operand 529 states and 766 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:56:17,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:17,538 INFO L93 Difference]: Finished difference Result 2224 states and 3121 transitions. [2024-11-11 22:56:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:56:17,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:56:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:17,548 INFO L225 Difference]: With dead ends: 2224 [2024-11-11 22:56:17,548 INFO L226 Difference]: Without dead ends: 1957 [2024-11-11 22:56:17,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:56:17,551 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 2313 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:17,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 1651 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:56:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2024-11-11 22:56:17,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1664. [2024-11-11 22:56:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1334 states have (on average 1.371064467766117) internal successors, (1829), 1363 states have internal predecessors, (1829), 175 states have call successors, (175), 131 states have call predecessors, (175), 153 states have return successors, (251), 173 states have call predecessors, (251), 171 states have call successors, (251) [2024-11-11 22:56:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2255 transitions. [2024-11-11 22:56:17,634 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2255 transitions. Word has length 65 [2024-11-11 22:56:17,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:17,635 INFO L471 AbstractCegarLoop]: Abstraction has 1664 states and 2255 transitions. [2024-11-11 22:56:17,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:56:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2255 transitions. [2024-11-11 22:56:17,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:17,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:17,637 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:17,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:56:17,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:17,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1235399148, now seen corresponding path program 1 times [2024-11-11 22:56:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:17,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923648975] [2024-11-11 22:56:17,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:17,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:17,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923648975] [2024-11-11 22:56:17,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923648975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:17,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:17,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:17,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235480325] [2024-11-11 22:56:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:17,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:17,749 INFO L87 Difference]: Start difference. First operand 1664 states and 2255 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:18,584 INFO L93 Difference]: Finished difference Result 3324 states and 4505 transitions. [2024-11-11 22:56:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:56:18,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 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 65 [2024-11-11 22:56:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:18,595 INFO L225 Difference]: With dead ends: 3324 [2024-11-11 22:56:18,596 INFO L226 Difference]: Without dead ends: 1922 [2024-11-11 22:56:18,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:18,602 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 413 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:18,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 2035 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-11-11 22:56:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1709. [2024-11-11 22:56:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1370 states have (on average 1.3547445255474453) internal successors, (1856), 1399 states have internal predecessors, (1856), 175 states have call successors, (175), 131 states have call predecessors, (175), 162 states have return successors, (263), 182 states have call predecessors, (263), 171 states have call successors, (263) [2024-11-11 22:56:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2294 transitions. [2024-11-11 22:56:18,705 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2294 transitions. Word has length 65 [2024-11-11 22:56:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:18,705 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2294 transitions. [2024-11-11 22:56:18,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:56:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2294 transitions. [2024-11-11 22:56:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:18,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:18,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:18,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:56:18,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:18,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:18,708 INFO L85 PathProgramCache]: Analyzing trace with hash 150804246, now seen corresponding path program 1 times [2024-11-11 22:56:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:18,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541214152] [2024-11-11 22:56:18,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:18,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:18,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:18,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541214152] [2024-11-11 22:56:18,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541214152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:18,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:18,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276056802] [2024-11-11 22:56:18,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:18,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:18,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:18,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:18,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:18,834 INFO L87 Difference]: Start difference. First operand 1709 states and 2294 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:19,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:19,754 INFO L93 Difference]: Finished difference Result 3241 states and 4294 transitions. [2024-11-11 22:56:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-11 22:56:19,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:19,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:19,763 INFO L225 Difference]: With dead ends: 3241 [2024-11-11 22:56:19,763 INFO L226 Difference]: Without dead ends: 2014 [2024-11-11 22:56:19,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-11 22:56:19,767 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 982 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:19,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1481 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:19,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-11 22:56:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1687. [2024-11-11 22:56:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1356 states have (on average 1.351032448377581) internal successors, (1832), 1379 states have internal predecessors, (1832), 175 states have call successors, (175), 131 states have call predecessors, (175), 154 states have return successors, (247), 180 states have call predecessors, (247), 171 states have call successors, (247) [2024-11-11 22:56:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2254 transitions. [2024-11-11 22:56:19,865 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2254 transitions. Word has length 65 [2024-11-11 22:56:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:19,866 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2254 transitions. [2024-11-11 22:56:19,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2254 transitions. [2024-11-11 22:56:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:56:19,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:19,868 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:19,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:56:19,869 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:19,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash 16790740, now seen corresponding path program 1 times [2024-11-11 22:56:19,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:19,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608366428] [2024-11-11 22:56:19,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:19,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:19,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:19,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608366428] [2024-11-11 22:56:19,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608366428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:19,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:19,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:19,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917110099] [2024-11-11 22:56:19,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:19,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:19,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:19,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:19,942 INFO L87 Difference]: Start difference. First operand 1687 states and 2254 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:20,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:20,623 INFO L93 Difference]: Finished difference Result 4825 states and 6368 transitions. [2024-11-11 22:56:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:56:20,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:56:20,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:20,639 INFO L225 Difference]: With dead ends: 4825 [2024-11-11 22:56:20,639 INFO L226 Difference]: Without dead ends: 3403 [2024-11-11 22:56:20,642 INFO L434 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 [2024-11-11 22:56:20,643 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 1179 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:20,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1017 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:20,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2024-11-11 22:56:20,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3131. [2024-11-11 22:56:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 2469 states have (on average 1.3017415957877683) internal successors, (3214), 2521 states have internal predecessors, (3214), 340 states have call successors, (340), 254 states have call predecessors, (340), 320 states have return successors, (574), 362 states have call predecessors, (574), 336 states have call successors, (574) [2024-11-11 22:56:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 4128 transitions. [2024-11-11 22:56:20,820 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 4128 transitions. Word has length 65 [2024-11-11 22:56:20,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:20,820 INFO L471 AbstractCegarLoop]: Abstraction has 3131 states and 4128 transitions. [2024-11-11 22:56:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:20,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 4128 transitions. [2024-11-11 22:56:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:56:20,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:20,833 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:20,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:56:20,833 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:20,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1203450812, now seen corresponding path program 1 times [2024-11-11 22:56:20,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:20,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717537646] [2024-11-11 22:56:20,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717537646] [2024-11-11 22:56:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717537646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:20,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:20,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:20,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439763453] [2024-11-11 22:56:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:20,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:20,899 INFO L87 Difference]: Start difference. First operand 3131 states and 4128 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-11 22:56:21,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:21,627 INFO L93 Difference]: Finished difference Result 8363 states and 11038 transitions. [2024-11-11 22:56:21,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:21,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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 66 [2024-11-11 22:56:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:21,652 INFO L225 Difference]: With dead ends: 8363 [2024-11-11 22:56:21,652 INFO L226 Difference]: Without dead ends: 5476 [2024-11-11 22:56:21,658 INFO L434 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 [2024-11-11 22:56:21,660 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 585 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:21,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1247 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:21,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2024-11-11 22:56:21,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 4843. [2024-11-11 22:56:21,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 3775 states have (on average 1.2863576158940397) internal successors, (4856), 3837 states have internal predecessors, (4856), 542 states have call successors, (542), 428 states have call predecessors, (542), 524 states have return successors, (926), 584 states have call predecessors, (926), 538 states have call successors, (926) [2024-11-11 22:56:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 6324 transitions. [2024-11-11 22:56:21,995 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 6324 transitions. Word has length 66 [2024-11-11 22:56:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:21,995 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 6324 transitions. [2024-11-11 22:56:21,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-11 22:56:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 6324 transitions. [2024-11-11 22:56:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:56:21,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:21,998 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:21,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:56:21,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:21,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash 503586546, now seen corresponding path program 1 times [2024-11-11 22:56:21,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:21,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093692487] [2024-11-11 22:56:21,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:22,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093692487] [2024-11-11 22:56:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093692487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:22,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:22,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:22,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477582209] [2024-11-11 22:56:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:22,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:22,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:22,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:22,078 INFO L87 Difference]: Start difference. First operand 4843 states and 6324 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-11 22:56:22,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:22,915 INFO L93 Difference]: Finished difference Result 6638 states and 8594 transitions. [2024-11-11 22:56:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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 73 [2024-11-11 22:56:22,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:22,944 INFO L225 Difference]: With dead ends: 6638 [2024-11-11 22:56:22,944 INFO L226 Difference]: Without dead ends: 6635 [2024-11-11 22:56:22,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:56:22,946 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 1430 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:22,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1039 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2024-11-11 22:56:23,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 5920. [2024-11-11 22:56:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5920 states, 4593 states have (on average 1.2747659481820162) internal successors, (5855), 4665 states have internal predecessors, (5855), 673 states have call successors, (673), 542 states have call predecessors, (673), 652 states have return successors, (1134), 719 states have call predecessors, (1134), 670 states have call successors, (1134) [2024-11-11 22:56:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5920 states to 5920 states and 7662 transitions. [2024-11-11 22:56:23,453 INFO L78 Accepts]: Start accepts. Automaton has 5920 states and 7662 transitions. Word has length 73 [2024-11-11 22:56:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:23,454 INFO L471 AbstractCegarLoop]: Abstraction has 5920 states and 7662 transitions. [2024-11-11 22:56:23,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-11 22:56:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5920 states and 7662 transitions. [2024-11-11 22:56:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-11 22:56:23,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:23,457 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:23,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:56:23,457 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:23,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:23,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1569714267, now seen corresponding path program 1 times [2024-11-11 22:56:23,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:23,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733650083] [2024-11-11 22:56:23,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:23,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:23,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733650083] [2024-11-11 22:56:23,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733650083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639625447] [2024-11-11 22:56:23,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:23,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:23,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:23,607 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) [2024-11-11 22:56:23,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:56:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:56:23,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:23,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:56:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:24,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639625447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:56:24,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:56:24,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-11 22:56:24,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176798710] [2024-11-11 22:56:24,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:56:24,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 22:56:24,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 22:56:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:24,005 INFO L87 Difference]: Start difference. First operand 5920 states and 7662 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-11-11 22:56:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:25,925 INFO L93 Difference]: Finished difference Result 13990 states and 17941 transitions. [2024-11-11 22:56:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:56:25,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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 74 [2024-11-11 22:56:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:25,981 INFO L225 Difference]: With dead ends: 13990 [2024-11-11 22:56:25,981 INFO L226 Difference]: Without dead ends: 13987 [2024-11-11 22:56:25,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-11 22:56:25,989 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 1442 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:25,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1938 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:56:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13987 states. [2024-11-11 22:56:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13987 to 11280. [2024-11-11 22:56:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11280 states, 8748 states have (on average 1.2677183356195703) internal successors, (11090), 8881 states have internal predecessors, (11090), 1263 states have call successors, (1263), 1032 states have call predecessors, (1263), 1267 states have return successors, (2161), 1373 states have call predecessors, (2161), 1260 states have call successors, (2161) [2024-11-11 22:56:27,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11280 states to 11280 states and 14514 transitions. [2024-11-11 22:56:27,150 INFO L78 Accepts]: Start accepts. Automaton has 11280 states and 14514 transitions. Word has length 74 [2024-11-11 22:56:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:27,151 INFO L471 AbstractCegarLoop]: Abstraction has 11280 states and 14514 transitions. [2024-11-11 22:56:27,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-11-11 22:56:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11280 states and 14514 transitions. [2024-11-11 22:56:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:56:27,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:27,152 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:27,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 22:56:27,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:27,357 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:27,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash -972919246, now seen corresponding path program 2 times [2024-11-11 22:56:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:27,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183383844] [2024-11-11 22:56:27,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:27,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:27,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:27,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183383844] [2024-11-11 22:56:27,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183383844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:27,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:27,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:27,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729903530] [2024-11-11 22:56:27,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:27,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:27,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:27,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:27,410 INFO L87 Difference]: Start difference. First operand 11280 states and 14514 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-11 22:56:28,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:28,379 INFO L93 Difference]: Finished difference Result 18125 states and 23408 transitions. [2024-11-11 22:56:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:28,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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 77 [2024-11-11 22:56:28,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:28,406 INFO L225 Difference]: With dead ends: 18125 [2024-11-11 22:56:28,406 INFO L226 Difference]: Without dead ends: 8001 [2024-11-11 22:56:28,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:28,426 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 845 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:28,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1128 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2024-11-11 22:56:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 7268. [2024-11-11 22:56:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7268 states, 5656 states have (on average 1.2457567185289957) internal successors, (7046), 5739 states have internal predecessors, (7046), 813 states have call successors, (813), 656 states have call predecessors, (813), 797 states have return successors, (1315), 879 states have call predecessors, (1315), 810 states have call successors, (1315) [2024-11-11 22:56:28,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 9174 transitions. [2024-11-11 22:56:28,918 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 9174 transitions. Word has length 77 [2024-11-11 22:56:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:28,918 INFO L471 AbstractCegarLoop]: Abstraction has 7268 states and 9174 transitions. [2024-11-11 22:56:28,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-11 22:56:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 9174 transitions. [2024-11-11 22:56:28,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:56:28,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:28,921 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:56:28,922 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:28,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1272990263, now seen corresponding path program 1 times [2024-11-11 22:56:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883027116] [2024-11-11 22:56:28,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:56:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:56:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883027116] [2024-11-11 22:56:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883027116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:29,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:29,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:29,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021713915] [2024-11-11 22:56:29,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:29,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:29,007 INFO L87 Difference]: Start difference. First operand 7268 states and 9174 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-11 22:56:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:31,157 INFO L93 Difference]: Finished difference Result 21844 states and 27701 transitions. [2024-11-11 22:56:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-11 22:56:31,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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 84 [2024-11-11 22:56:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:31,215 INFO L225 Difference]: With dead ends: 21844 [2024-11-11 22:56:31,216 INFO L226 Difference]: Without dead ends: 14844 [2024-11-11 22:56:31,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-11-11 22:56:31,238 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 823 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:31,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1605 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14844 states. [2024-11-11 22:56:32,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14844 to 13688. [2024-11-11 22:56:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13688 states, 10500 states have (on average 1.219142857142857) internal successors, (12801), 10691 states have internal predecessors, (12801), 1585 states have call successors, (1585), 1260 states have call predecessors, (1585), 1601 states have return successors, (2932), 1749 states have call predecessors, (2932), 1582 states have call successors, (2932) [2024-11-11 22:56:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13688 states to 13688 states and 17318 transitions. [2024-11-11 22:56:32,394 INFO L78 Accepts]: Start accepts. Automaton has 13688 states and 17318 transitions. Word has length 84 [2024-11-11 22:56:32,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:32,394 INFO L471 AbstractCegarLoop]: Abstraction has 13688 states and 17318 transitions. [2024-11-11 22:56:32,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-11 22:56:32,395 INFO L276 IsEmpty]: Start isEmpty. Operand 13688 states and 17318 transitions. [2024-11-11 22:56:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:56:32,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:32,400 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-11 22:56:32,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:56:32,400 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:32,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:32,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1493425648, now seen corresponding path program 1 times [2024-11-11 22:56:32,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:32,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503154575] [2024-11-11 22:56:32,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:32,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 22:56:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 22:56:32,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:32,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503154575] [2024-11-11 22:56:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503154575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841205570] [2024-11-11 22:56:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:32,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:32,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:32,495 INFO L87 Difference]: Start difference. First operand 13688 states and 17318 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-11 22:56:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:34,264 INFO L93 Difference]: Finished difference Result 27068 states and 34034 transitions. [2024-11-11 22:56:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-11 22:56:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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 93 [2024-11-11 22:56:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:34,312 INFO L225 Difference]: With dead ends: 27068 [2024-11-11 22:56:34,313 INFO L226 Difference]: Without dead ends: 14543 [2024-11-11 22:56:34,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-11 22:56:34,346 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 1873 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:34,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 1376 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14543 states. [2024-11-11 22:56:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14543 to 13562. [2024-11-11 22:56:35,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 10404 states have (on average 1.2011726259131104) internal successors, (12497), 10613 states have internal predecessors, (12497), 1555 states have call successors, (1555), 1260 states have call predecessors, (1555), 1601 states have return successors, (2681), 1701 states have call predecessors, (2681), 1552 states have call successors, (2681) [2024-11-11 22:56:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 16733 transitions. [2024-11-11 22:56:35,359 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 16733 transitions. Word has length 93 [2024-11-11 22:56:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:35,359 INFO L471 AbstractCegarLoop]: Abstraction has 13562 states and 16733 transitions. [2024-11-11 22:56:35,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-11 22:56:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 16733 transitions. [2024-11-11 22:56:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:56:35,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:35,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:35,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:56:35,367 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:35,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1849447866, now seen corresponding path program 1 times [2024-11-11 22:56:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403705727] [2024-11-11 22:56:35,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:35,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:56:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:35,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:35,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403705727] [2024-11-11 22:56:35,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403705727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:35,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:35,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:56:35,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441866075] [2024-11-11 22:56:35,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:35,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:56:35,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:35,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:56:35,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:56:35,443 INFO L87 Difference]: Start difference. First operand 13562 states and 16733 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:38,574 INFO L93 Difference]: Finished difference Result 13867 states and 17212 transitions. [2024-11-11 22:56:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:56:38,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 113 [2024-11-11 22:56:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:38,615 INFO L225 Difference]: With dead ends: 13867 [2024-11-11 22:56:38,616 INFO L226 Difference]: Without dead ends: 13638 [2024-11-11 22:56:38,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:38,623 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 705 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:38,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 742 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2024-11-11 22:56:40,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 13562. [2024-11-11 22:56:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 10404 states have (on average 1.2010765090349866) internal successors, (12496), 10613 states have internal predecessors, (12496), 1555 states have call successors, (1555), 1260 states have call predecessors, (1555), 1601 states have return successors, (2681), 1701 states have call predecessors, (2681), 1552 states have call successors, (2681) [2024-11-11 22:56:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 16732 transitions. [2024-11-11 22:56:40,226 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 16732 transitions. Word has length 113 [2024-11-11 22:56:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:40,226 INFO L471 AbstractCegarLoop]: Abstraction has 13562 states and 16732 transitions. [2024-11-11 22:56:40,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 16732 transitions. [2024-11-11 22:56:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:56:40,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:40,235 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:40,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:56:40,235 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash 818406968, now seen corresponding path program 1 times [2024-11-11 22:56:40,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:40,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780905230] [2024-11-11 22:56:40,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:40,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:56:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780905230] [2024-11-11 22:56:40,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780905230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:40,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:40,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312785930] [2024-11-11 22:56:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:40,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:40,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:40,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:40,360 INFO L87 Difference]: Start difference. First operand 13562 states and 16732 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:43,399 INFO L93 Difference]: Finished difference Result 14187 states and 17726 transitions. [2024-11-11 22:56:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:43,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:56:43,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:43,439 INFO L225 Difference]: With dead ends: 14187 [2024-11-11 22:56:43,440 INFO L226 Difference]: Without dead ends: 13960 [2024-11-11 22:56:43,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:43,444 INFO L435 NwaCegarLoop]: 439 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:43,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1907 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:56:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13960 states. [2024-11-11 22:56:44,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13960 to 13797. [2024-11-11 22:56:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 10614 states have (on average 1.2082155643489731) internal successors, (12824), 10825 states have internal predecessors, (12824), 1572 states have call successors, (1572), 1266 states have call predecessors, (1572), 1609 states have return successors, (2705), 1719 states have call predecessors, (2705), 1569 states have call successors, (2705) [2024-11-11 22:56:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 17101 transitions. [2024-11-11 22:56:45,043 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 17101 transitions. Word has length 113 [2024-11-11 22:56:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:45,044 INFO L471 AbstractCegarLoop]: Abstraction has 13797 states and 17101 transitions. [2024-11-11 22:56:45,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 17101 transitions. [2024-11-11 22:56:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:56:45,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:45,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:45,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:56:45,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:45,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2125175110, now seen corresponding path program 1 times [2024-11-11 22:56:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519311060] [2024-11-11 22:56:45,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:45,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:56:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:45,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:45,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519311060] [2024-11-11 22:56:45,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519311060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:45,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:45,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:45,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272505016] [2024-11-11 22:56:45,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:45,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:45,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:45,177 INFO L87 Difference]: Start difference. First operand 13797 states and 17101 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:47,997 INFO L93 Difference]: Finished difference Result 14982 states and 18969 transitions. [2024-11-11 22:56:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:47,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:56:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:48,034 INFO L225 Difference]: With dead ends: 14982 [2024-11-11 22:56:48,034 INFO L226 Difference]: Without dead ends: 14522 [2024-11-11 22:56:48,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:48,040 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 1095 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:48,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1801 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:56:48,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14522 states. [2024-11-11 22:56:49,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14522 to 14231. [2024-11-11 22:56:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 11004 states have (on average 1.2196474009451108) internal successors, (13421), 11217 states have internal predecessors, (13421), 1602 states have call successors, (1602), 1278 states have call predecessors, (1602), 1623 states have return successors, (2745), 1751 states have call predecessors, (2745), 1599 states have call successors, (2745) [2024-11-11 22:56:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 17768 transitions. [2024-11-11 22:56:49,729 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 17768 transitions. Word has length 113 [2024-11-11 22:56:49,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:49,729 INFO L471 AbstractCegarLoop]: Abstraction has 14231 states and 17768 transitions. [2024-11-11 22:56:49,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 17768 transitions. [2024-11-11 22:56:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:56:49,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:49,739 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:49,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:56:49,739 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:49,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:49,740 INFO L85 PathProgramCache]: Analyzing trace with hash 550817272, now seen corresponding path program 1 times [2024-11-11 22:56:49,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:49,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601462697] [2024-11-11 22:56:49,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:49,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:56:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:49,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:49,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601462697] [2024-11-11 22:56:49,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601462697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:49,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:49,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:49,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339137564] [2024-11-11 22:56:49,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:49,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:49,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:49,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:49,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:49,861 INFO L87 Difference]: Start difference. First operand 14231 states and 17768 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:53,435 INFO L93 Difference]: Finished difference Result 16538 states and 21396 transitions. [2024-11-11 22:56:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:56:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:53,476 INFO L225 Difference]: With dead ends: 16538 [2024-11-11 22:56:53,476 INFO L226 Difference]: Without dead ends: 15644 [2024-11-11 22:56:53,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:53,484 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:53,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1902 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:56:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15644 states. [2024-11-11 22:56:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15644 to 15101. [2024-11-11 22:56:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15101 states, 11786 states have (on average 1.2402002375699983) internal successors, (14617), 12003 states have internal predecessors, (14617), 1662 states have call successors, (1662), 1302 states have call predecessors, (1662), 1651 states have return successors, (2831), 1815 states have call predecessors, (2831), 1659 states have call successors, (2831) [2024-11-11 22:56:55,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15101 states to 15101 states and 19110 transitions. [2024-11-11 22:56:55,267 INFO L78 Accepts]: Start accepts. Automaton has 15101 states and 19110 transitions. Word has length 113 [2024-11-11 22:56:55,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:55,267 INFO L471 AbstractCegarLoop]: Abstraction has 15101 states and 19110 transitions. [2024-11-11 22:56:55,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15101 states and 19110 transitions. [2024-11-11 22:56:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:56:55,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:55,275 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:55,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:56:55,275 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:55,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -332691718, now seen corresponding path program 1 times [2024-11-11 22:56:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:55,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26677958] [2024-11-11 22:56:55,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:55,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:56:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:55,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26677958] [2024-11-11 22:56:55,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26677958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:55,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:55,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333844492] [2024-11-11 22:56:55,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:55,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:55,392 INFO L87 Difference]: Start difference. First operand 15101 states and 19110 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:58,665 INFO L93 Difference]: Finished difference Result 19648 states and 26264 transitions. [2024-11-11 22:56:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:56:58,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:58,716 INFO L225 Difference]: With dead ends: 19648 [2024-11-11 22:56:58,716 INFO L226 Difference]: Without dead ends: 17884 [2024-11-11 22:56:58,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:58,728 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:58,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1904 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:56:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2024-11-11 22:57:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 16847. [2024-11-11 22:57:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16847 states, 13356 states have (on average 1.2741090146750524) internal successors, (17017), 13581 states have internal predecessors, (17017), 1782 states have call successors, (1782), 1350 states have call predecessors, (1782), 1707 states have return successors, (3021), 1943 states have call predecessors, (3021), 1779 states have call successors, (3021) [2024-11-11 22:57:00,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16847 states to 16847 states and 21820 transitions. [2024-11-11 22:57:00,607 INFO L78 Accepts]: Start accepts. Automaton has 16847 states and 21820 transitions. Word has length 113 [2024-11-11 22:57:00,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:00,608 INFO L471 AbstractCegarLoop]: Abstraction has 16847 states and 21820 transitions. [2024-11-11 22:57:00,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 16847 states and 21820 transitions. [2024-11-11 22:57:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:57:00,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:00,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:00,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:57:00,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:00,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash -361192008, now seen corresponding path program 1 times [2024-11-11 22:57:00,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:00,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706246909] [2024-11-11 22:57:00,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:57:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:57:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:57:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:57:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:00,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706246909] [2024-11-11 22:57:00,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706246909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:00,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:00,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:00,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602658895] [2024-11-11 22:57:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:00,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:00,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:00,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:00,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:00,742 INFO L87 Difference]: Start difference. First operand 16847 states and 21820 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:04,082 INFO L93 Difference]: Finished difference Result 25866 states and 36056 transitions. [2024-11-11 22:57:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:57:04,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:04,136 INFO L225 Difference]: With dead ends: 25866 [2024-11-11 22:57:04,136 INFO L226 Difference]: Without dead ends: 22356 [2024-11-11 22:57:04,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:57:04,149 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:04,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1901 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:57:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22356 states. [2024-11-11 22:57:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22356 to 20353. [2024-11-11 22:57:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20353 states, 16510 states have (on average 1.3226529376135676) internal successors, (21837), 16751 states have internal predecessors, (21837), 2022 states have call successors, (2022), 1446 states have call predecessors, (2022), 1819 states have return successors, (3455), 2199 states have call predecessors, (3455), 2019 states have call successors, (3455) [2024-11-11 22:57:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20353 states to 20353 states and 27314 transitions. [2024-11-11 22:57:06,242 INFO L78 Accepts]: Start accepts. Automaton has 20353 states and 27314 transitions. Word has length 113 [2024-11-11 22:57:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:06,242 INFO L471 AbstractCegarLoop]: Abstraction has 20353 states and 27314 transitions. [2024-11-11 22:57:06,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 20353 states and 27314 transitions. [2024-11-11 22:57:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:57:06,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:06,253 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:06,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:57:06,254 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:06,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1993193274, now seen corresponding path program 1 times [2024-11-11 22:57:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:06,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528507272] [2024-11-11 22:57:06,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:57:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:57:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:57:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:57:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:06,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:06,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528507272] [2024-11-11 22:57:06,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528507272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:06,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:06,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:06,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915891254] [2024-11-11 22:57:06,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:06,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:06,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:06,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:06,371 INFO L87 Difference]: Start difference. First operand 20353 states and 27314 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:10,117 INFO L93 Difference]: Finished difference Result 38300 states and 55828 transitions. [2024-11-11 22:57:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:10,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:57:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:10,206 INFO L225 Difference]: With dead ends: 38300 [2024-11-11 22:57:10,206 INFO L226 Difference]: Without dead ends: 31284 [2024-11-11 22:57:10,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:57:10,233 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 1070 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:10,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1904 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:57:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31284 states. [2024-11-11 22:57:12,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31284 to 27395. [2024-11-11 22:57:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27395 states, 22848 states have (on average 1.3795955882352942) internal successors, (31521), 23121 states have internal predecessors, (31521), 2502 states have call successors, (2502), 1638 states have call predecessors, (2502), 2043 states have return successors, (4485), 2711 states have call predecessors, (4485), 2499 states have call successors, (4485) [2024-11-11 22:57:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27395 states to 27395 states and 38508 transitions. [2024-11-11 22:57:12,930 INFO L78 Accepts]: Start accepts. Automaton has 27395 states and 38508 transitions. Word has length 113 [2024-11-11 22:57:12,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:12,930 INFO L471 AbstractCegarLoop]: Abstraction has 27395 states and 38508 transitions. [2024-11-11 22:57:12,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 27395 states and 38508 transitions. [2024-11-11 22:57:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:57:12,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:12,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:12,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:57:12,944 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:12,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:12,944 INFO L85 PathProgramCache]: Analyzing trace with hash -424710792, now seen corresponding path program 1 times [2024-11-11 22:57:12,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:12,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016357240] [2024-11-11 22:57:12,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:12,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:57:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:13,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:57:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:13,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:57:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:13,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:57:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:13,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:13,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016357240] [2024-11-11 22:57:13,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016357240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652924345] [2024-11-11 22:57:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:13,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:13,061 INFO L87 Difference]: Start difference. First operand 27395 states and 38508 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:18,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:18,066 INFO L93 Difference]: Finished difference Result 69118 states and 104930 transitions. [2024-11-11 22:57:18,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:57:18,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:57:18,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:18,218 INFO L225 Difference]: With dead ends: 69118 [2024-11-11 22:57:18,219 INFO L226 Difference]: Without dead ends: 55060 [2024-11-11 22:57:18,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:18,256 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 1139 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:18,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1892 Invalid, 2783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:57:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55060 states. [2024-11-11 22:57:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55060 to 41349. [2024-11-11 22:57:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41349 states, 35458 states have (on average 1.4341756444243894) internal successors, (50853), 35795 states have internal predecessors, (50853), 3398 states have call successors, (3398), 2022 states have call predecessors, (3398), 2491 states have return successors, (6967), 3671 states have call predecessors, (6967), 3395 states have call successors, (6967) [2024-11-11 22:57:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41349 states to 41349 states and 61218 transitions. [2024-11-11 22:57:21,680 INFO L78 Accepts]: Start accepts. Automaton has 41349 states and 61218 transitions. Word has length 113 [2024-11-11 22:57:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:21,680 INFO L471 AbstractCegarLoop]: Abstraction has 41349 states and 61218 transitions. [2024-11-11 22:57:21,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 41349 states and 61218 transitions. [2024-11-11 22:57:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:57:21,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:21,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:21,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:57:21,699 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:21,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:21,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1195444358, now seen corresponding path program 1 times [2024-11-11 22:57:21,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:21,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764988128] [2024-11-11 22:57:21,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:57:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:57:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:57:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:57:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:21,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:21,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764988128] [2024-11-11 22:57:21,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764988128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:21,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:21,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:21,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415976244] [2024-11-11 22:57:21,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:21,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:21,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:21,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:21,806 INFO L87 Difference]: Start difference. First operand 41349 states and 61218 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:57:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:29,030 INFO L93 Difference]: Finished difference Result 120899 states and 190134 transitions. [2024-11-11 22:57:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:57:29,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 113 [2024-11-11 22:57:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:29,301 INFO L225 Difference]: With dead ends: 120899 [2024-11-11 22:57:29,301 INFO L226 Difference]: Without dead ends: 92887 [2024-11-11 22:57:29,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:29,379 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 1132 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:29,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1892 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:57:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92887 states.