./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.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.03.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 a31ccbb50ed824a1b6eea67c3747e38f48ab93613ea1abf86baf8d129dc78945 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:55:42,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:55:42,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:55:42,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:55:42,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:55:42,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:55:42,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:55:42,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:55:42,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:55:42,140 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:55:42,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:55:42,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:55:42,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:55:42,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:55:42,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:55:42,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:55:42,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:55:42,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:55:42,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:55:42,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:55:42,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:55:42,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:55:42,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:55:42,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:55:42,147 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:55:42,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:55:42,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:55:42,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:55:42,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:55:42,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:55:42,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:55:42,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:55:42,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:55:42,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:55:42,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:55:42,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:55:42,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:55:42,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:55:42,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:55:42,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:55:42,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:55:42,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:55:42,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a31ccbb50ed824a1b6eea67c3747e38f48ab93613ea1abf86baf8d129dc78945 [2024-11-11 22:55:42,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:55:42,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:55:42,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:55:42,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:55:42,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:55:42,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2024-11-11 22:55:43,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:55:44,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:55:44,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2024-11-11 22:55:44,117 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a20ec668/d0ded59c6a1241faa7cfe9652d9e20d5/FLAG726335c53 [2024-11-11 22:55:44,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a20ec668/d0ded59c6a1241faa7cfe9652d9e20d5 [2024-11-11 22:55:44,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:55:44,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:55:44,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:55:44,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:55:44,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:55:44,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acbdc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44, skipping insertion in model container [2024-11-11 22:55:44,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:55:44,375 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.03.cil-1.c[914,927] [2024-11-11 22:55:44,431 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.03.cil-1.c[7115,7128] [2024-11-11 22:55:44,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:55:44,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:55:44,497 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.03.cil-1.c[914,927] [2024-11-11 22:55:44,516 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.03.cil-1.c[7115,7128] [2024-11-11 22:55:44,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:55:44,569 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:55:44,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44 WrapperNode [2024-11-11 22:55:44,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:55:44,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:55:44,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:55:44,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:55:44,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,620 INFO L138 Inliner]: procedures = 59, calls = 67, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 534 [2024-11-11 22:55:44,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:55:44,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:55:44,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:55:44,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:55:44,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,650 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 22:55:44,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:55:44,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:55:44,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:55:44,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:55:44,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (1/1) ... [2024-11-11 22:55:44,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:55:44,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:44,721 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 22:55:44,727 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 22:55:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:55:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:55:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:55:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:55:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:55:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:55:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:55:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:55:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:55:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:55:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:55:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:55:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:55:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:55:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:55:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:55:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:55:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:55:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:55:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:55:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:55:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:55:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:55:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:55:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:55:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:55:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:55:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:55:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:55:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:55:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:55:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:55:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:55:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:55:44,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:55:44,906 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:55:45,511 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-11 22:55:45,511 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:55:45,539 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:55:45,539 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-11 22:55:45,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:55:45 BoogieIcfgContainer [2024-11-11 22:55:45,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:55:45,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:55:45,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:55:45,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:55:45,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:55:44" (1/3) ... [2024-11-11 22:55:45,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd9111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:55:45, skipping insertion in model container [2024-11-11 22:55:45,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:44" (2/3) ... [2024-11-11 22:55:45,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd9111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:55:45, skipping insertion in model container [2024-11-11 22:55:45,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:55:45" (3/3) ... [2024-11-11 22:55:45,549 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2024-11-11 22:55:45,562 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:55:45,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:55:45,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:55:45,690 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;@349f4d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:55:45,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:55:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 270 states, 219 states have (on average 1.5707762557077625) internal successors, (344), 227 states have internal predecessors, (344), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-11 22:55:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:45,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:45,711 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 22:55:45,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:45,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:45,718 INFO L85 PathProgramCache]: Analyzing trace with hash 948364097, now seen corresponding path program 1 times [2024-11-11 22:55:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:45,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9444965] [2024-11-11 22:55:45,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:45,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:46,360 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 22:55:46,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:46,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9444965] [2024-11-11 22:55:46,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9444965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:46,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:46,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355458947] [2024-11-11 22:55:46,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:46,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:46,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:46,407 INFO L87 Difference]: Start difference. First operand has 270 states, 219 states have (on average 1.5707762557077625) internal successors, (344), 227 states have internal predecessors, (344), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) 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 22:55:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:47,464 INFO L93 Difference]: Finished difference Result 655 states and 996 transitions. [2024-11-11 22:55:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:47,467 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 22:55:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:47,479 INFO L225 Difference]: With dead ends: 655 [2024-11-11 22:55:47,479 INFO L226 Difference]: Without dead ends: 394 [2024-11-11 22:55:47,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:55:47,487 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 676 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:47,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1153 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:55:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-11 22:55:47,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 355. [2024-11-11 22:55:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 287 states have (on average 1.4529616724738676) internal successors, (417), 294 states have internal predecessors, (417), 44 states have call successors, (44), 22 states have call predecessors, (44), 22 states have return successors, (45), 41 states have call predecessors, (45), 40 states have call successors, (45) [2024-11-11 22:55:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 506 transitions. [2024-11-11 22:55:47,673 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 506 transitions. Word has length 65 [2024-11-11 22:55:47,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:47,674 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 506 transitions. [2024-11-11 22:55:47,674 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 22:55:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 506 transitions. [2024-11-11 22:55:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:47,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:47,681 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 22:55:47,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:55:47,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:47,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:47,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1667714559, now seen corresponding path program 1 times [2024-11-11 22:55:47,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:47,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337566303] [2024-11-11 22:55:47,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:47,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:47,918 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 22:55:47,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337566303] [2024-11-11 22:55:47,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337566303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:47,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:47,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:47,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688892384] [2024-11-11 22:55:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:47,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:47,926 INFO L87 Difference]: Start difference. First operand 355 states and 506 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 22:55:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:48,983 INFO L93 Difference]: Finished difference Result 702 states and 983 transitions. [2024-11-11 22:55:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:55:48,983 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 22:55:48,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:48,988 INFO L225 Difference]: With dead ends: 702 [2024-11-11 22:55:48,988 INFO L226 Difference]: Without dead ends: 525 [2024-11-11 22:55:48,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:55:48,991 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 710 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:48,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1394 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:55:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-11 22:55:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 451. [2024-11-11 22:55:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 363 states have (on average 1.4352617079889807) internal successors, (521), 372 states have internal predecessors, (521), 55 states have call successors, (55), 29 states have call predecessors, (55), 31 states have return successors, (64), 53 states have call predecessors, (64), 51 states have call successors, (64) [2024-11-11 22:55:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 640 transitions. [2024-11-11 22:55:49,044 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 640 transitions. Word has length 65 [2024-11-11 22:55:49,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:49,045 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 640 transitions. [2024-11-11 22:55:49,045 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 22:55:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 640 transitions. [2024-11-11 22:55:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:49,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:49,047 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 22:55:49,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:55:49,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:49,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 598666627, now seen corresponding path program 1 times [2024-11-11 22:55:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:49,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967235790] [2024-11-11 22:55:49,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:49,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:49,226 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 22:55:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967235790] [2024-11-11 22:55:49,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967235790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:49,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:49,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188598002] [2024-11-11 22:55:49,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:49,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:49,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:49,229 INFO L87 Difference]: Start difference. First operand 451 states and 640 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 22:55:50,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:50,004 INFO L93 Difference]: Finished difference Result 750 states and 1051 transitions. [2024-11-11 22:55:50,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:50,005 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 22:55:50,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:50,009 INFO L225 Difference]: With dead ends: 750 [2024-11-11 22:55:50,009 INFO L226 Difference]: Without dead ends: 483 [2024-11-11 22:55:50,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:55:50,011 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 290 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:50,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1538 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-11 22:55:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 456. [2024-11-11 22:55:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 367 states have (on average 1.4250681198910082) internal successors, (523), 376 states have internal predecessors, (523), 55 states have call successors, (55), 29 states have call predecessors, (55), 32 states have return successors, (65), 54 states have call predecessors, (65), 51 states have call successors, (65) [2024-11-11 22:55:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 643 transitions. [2024-11-11 22:55:50,083 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 643 transitions. Word has length 65 [2024-11-11 22:55:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:50,084 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 643 transitions. [2024-11-11 22:55:50,084 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 22:55:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 643 transitions. [2024-11-11 22:55:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:50,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:50,086 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 22:55:50,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:55:50,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:50,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash -430692671, now seen corresponding path program 1 times [2024-11-11 22:55:50,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:50,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304348036] [2024-11-11 22:55:50,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:50,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,213 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 22:55:50,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304348036] [2024-11-11 22:55:50,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304348036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:50,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:50,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:50,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62103644] [2024-11-11 22:55:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:50,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:50,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:50,217 INFO L87 Difference]: Start difference. First operand 456 states and 643 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 22:55:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:50,999 INFO L93 Difference]: Finished difference Result 772 states and 1073 transitions. [2024-11-11 22:55:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:55:51,000 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 22:55:51,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:51,007 INFO L225 Difference]: With dead ends: 772 [2024-11-11 22:55:51,007 INFO L226 Difference]: Without dead ends: 500 [2024-11-11 22:55:51,009 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 22:55:51,013 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 435 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:51,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1369 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-11 22:55:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 471. [2024-11-11 22:55:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 379 states have (on average 1.4116094986807388) internal successors, (535), 388 states have internal predecessors, (535), 55 states have call successors, (55), 29 states have call predecessors, (55), 35 states have return successors, (68), 57 states have call predecessors, (68), 51 states have call successors, (68) [2024-11-11 22:55:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 658 transitions. [2024-11-11 22:55:51,056 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 658 transitions. Word has length 65 [2024-11-11 22:55:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:51,057 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 658 transitions. [2024-11-11 22:55:51,057 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 22:55:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 658 transitions. [2024-11-11 22:55:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:51,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:51,059 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 22:55:51,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:55:51,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:51,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash 955510723, now seen corresponding path program 1 times [2024-11-11 22:55:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:51,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775849904] [2024-11-11 22:55:51,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:51,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:51,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:51,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775849904] [2024-11-11 22:55:51,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775849904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:51,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:51,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:51,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406521495] [2024-11-11 22:55:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:51,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:51,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:51,258 INFO L87 Difference]: Start difference. First operand 471 states and 658 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 22:55:52,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:52,211 INFO L93 Difference]: Finished difference Result 863 states and 1169 transitions. [2024-11-11 22:55:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:55:52,212 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 22:55:52,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:52,217 INFO L225 Difference]: With dead ends: 863 [2024-11-11 22:55:52,217 INFO L226 Difference]: Without dead ends: 578 [2024-11-11 22:55:52,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:55:52,221 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 736 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:52,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1170 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:55:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-11 22:55:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 483. [2024-11-11 22:55:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 389 states have (on average 1.4010282776349614) internal successors, (545), 398 states have internal predecessors, (545), 56 states have call successors, (56), 30 states have call predecessors, (56), 36 states have return successors, (67), 58 states have call predecessors, (67), 52 states have call successors, (67) [2024-11-11 22:55:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 668 transitions. [2024-11-11 22:55:52,259 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 668 transitions. Word has length 65 [2024-11-11 22:55:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:52,260 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 668 transitions. [2024-11-11 22:55:52,260 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 22:55:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 668 transitions. [2024-11-11 22:55:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:52,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:52,262 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 22:55:52,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:55:52,262 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:52,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash 821497217, now seen corresponding path program 1 times [2024-11-11 22:55:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398102441] [2024-11-11 22:55:52,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:52,379 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 22:55:52,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398102441] [2024-11-11 22:55:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398102441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:52,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72655058] [2024-11-11 22:55:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:52,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:52,382 INFO L87 Difference]: Start difference. First operand 483 states and 668 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 22:55:52,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:52,954 INFO L93 Difference]: Finished difference Result 1125 states and 1515 transitions. [2024-11-11 22:55:52,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:55:52,954 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 22:55:52,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:52,960 INFO L225 Difference]: With dead ends: 1125 [2024-11-11 22:55:52,961 INFO L226 Difference]: Without dead ends: 829 [2024-11-11 22:55:52,962 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 22:55:52,965 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 1064 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:52,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 606 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:52,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-11 22:55:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 773. [2024-11-11 22:55:53,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 613 states have (on average 1.3572593800978794) internal successors, (832), 629 states have internal predecessors, (832), 91 states have call successors, (91), 52 states have call predecessors, (91), 67 states have return successors, (124), 98 states have call predecessors, (124), 87 states have call successors, (124) [2024-11-11 22:55:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1047 transitions. [2024-11-11 22:55:53,018 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1047 transitions. Word has length 65 [2024-11-11 22:55:53,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:53,019 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1047 transitions. [2024-11-11 22:55:53,021 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 22:55:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1047 transitions. [2024-11-11 22:55:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:55:53,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:53,024 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 22:55:53,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:55:53,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:53,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash 379770828, now seen corresponding path program 1 times [2024-11-11 22:55:53,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:53,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69410921] [2024-11-11 22:55:53,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,103 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 22:55:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:53,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69410921] [2024-11-11 22:55:53,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69410921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:53,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:53,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:53,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260663637] [2024-11-11 22:55:53,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:53,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:53,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:53,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:53,105 INFO L87 Difference]: Start difference. First operand 773 states and 1047 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 22:55:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:53,722 INFO L93 Difference]: Finished difference Result 1976 states and 2618 transitions. [2024-11-11 22:55:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:53,723 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 22:55:53,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:53,729 INFO L225 Difference]: With dead ends: 1976 [2024-11-11 22:55:53,730 INFO L226 Difference]: Without dead ends: 1369 [2024-11-11 22:55:53,732 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 22:55:53,732 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 483 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:53,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 896 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-11 22:55:53,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1254. [2024-11-11 22:55:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 992 states have (on average 1.3235887096774193) internal successors, (1313), 1011 states have internal predecessors, (1313), 136 states have call successors, (136), 96 states have call predecessors, (136), 124 states have return successors, (196), 153 states have call predecessors, (196), 132 states have call successors, (196) [2024-11-11 22:55:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1645 transitions. [2024-11-11 22:55:53,812 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1645 transitions. Word has length 66 [2024-11-11 22:55:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:53,812 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1645 transitions. [2024-11-11 22:55:53,813 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 22:55:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1645 transitions. [2024-11-11 22:55:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:55:53,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:53,816 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 22:55:53,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:55:53,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:53,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1838010487, now seen corresponding path program 1 times [2024-11-11 22:55:53,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:53,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395951006] [2024-11-11 22:55:53,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:53,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:53,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395951006] [2024-11-11 22:55:53,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395951006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:53,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:53,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661571394] [2024-11-11 22:55:53,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:53,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:53,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:53,917 INFO L87 Difference]: Start difference. First operand 1254 states and 1645 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 22:55:54,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:54,589 INFO L93 Difference]: Finished difference Result 3442 states and 4451 transitions. [2024-11-11 22:55:54,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:55:54,590 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 22:55:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:54,601 INFO L225 Difference]: With dead ends: 3442 [2024-11-11 22:55:54,601 INFO L226 Difference]: Without dead ends: 2374 [2024-11-11 22:55:54,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:55:54,605 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 708 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:54,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 772 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2024-11-11 22:55:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2116. [2024-11-11 22:55:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2116 states, 1658 states have (on average 1.290711700844391) internal successors, (2140), 1687 states have internal predecessors, (2140), 234 states have call successors, (234), 180 states have call predecessors, (234), 222 states have return successors, (332), 255 states have call predecessors, (332), 230 states have call successors, (332) [2024-11-11 22:55:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2706 transitions. [2024-11-11 22:55:54,747 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2706 transitions. Word has length 66 [2024-11-11 22:55:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:54,748 INFO L471 AbstractCegarLoop]: Abstraction has 2116 states and 2706 transitions. [2024-11-11 22:55:54,748 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 22:55:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2706 transitions. [2024-11-11 22:55:54,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-11 22:55:54,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:54,751 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] [2024-11-11 22:55:54,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:55:54,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:54,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1147220843, now seen corresponding path program 1 times [2024-11-11 22:55:54,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:54,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16766022] [2024-11-11 22:55:54,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:54,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:54,816 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 22:55:54,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:54,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16766022] [2024-11-11 22:55:54,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16766022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:54,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:54,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917987593] [2024-11-11 22:55:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:54,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:54,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:54,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:54,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:54,819 INFO L87 Difference]: Start difference. First operand 2116 states and 2706 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 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 22:55:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:55,532 INFO L93 Difference]: Finished difference Result 5026 states and 6356 transitions. [2024-11-11 22:55:55,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:55,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 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 72 [2024-11-11 22:55:55,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:55,548 INFO L225 Difference]: With dead ends: 5026 [2024-11-11 22:55:55,548 INFO L226 Difference]: Without dead ends: 3096 [2024-11-11 22:55:55,552 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 22:55:55,554 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 693 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:55,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 818 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2024-11-11 22:55:55,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2848. [2024-11-11 22:55:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2226 states have (on average 1.2776280323450135) internal successors, (2844), 2263 states have internal predecessors, (2844), 314 states have call successors, (314), 250 states have call predecessors, (314), 306 states have return successors, (441), 341 states have call predecessors, (441), 310 states have call successors, (441) [2024-11-11 22:55:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3599 transitions. [2024-11-11 22:55:55,822 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3599 transitions. Word has length 72 [2024-11-11 22:55:55,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:55,822 INFO L471 AbstractCegarLoop]: Abstraction has 2848 states and 3599 transitions. [2024-11-11 22:55:55,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 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 22:55:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3599 transitions. [2024-11-11 22:55:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:55:55,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:55,824 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 22:55:55,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:55:55,824 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:55,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:55,825 INFO L85 PathProgramCache]: Analyzing trace with hash 687806751, now seen corresponding path program 1 times [2024-11-11 22:55:55,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:55,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163687938] [2024-11-11 22:55:55,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:55,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,921 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 22:55:55,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:55,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163687938] [2024-11-11 22:55:55,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163687938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:55,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:55,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:55,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989743298] [2024-11-11 22:55:55,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:55,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:55,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:55,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:55,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:55,923 INFO L87 Difference]: Start difference. First operand 2848 states and 3599 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 22:55:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:56,758 INFO L93 Difference]: Finished difference Result 3622 states and 4530 transitions. [2024-11-11 22:55:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:55:56,758 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 22:55:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:56,777 INFO L225 Difference]: With dead ends: 3622 [2024-11-11 22:55:56,777 INFO L226 Difference]: Without dead ends: 3619 [2024-11-11 22:55:56,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:55:56,780 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 1073 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:56,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 792 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:56,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2024-11-11 22:55:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3342. [2024-11-11 22:55:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 2611 states have (on average 1.2700114898506318) internal successors, (3316), 2653 states have internal predecessors, (3316), 364 states have call successors, (364), 294 states have call predecessors, (364), 365 states have return successors, (520), 401 states have call predecessors, (520), 361 states have call successors, (520) [2024-11-11 22:55:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4200 transitions. [2024-11-11 22:55:57,098 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4200 transitions. Word has length 73 [2024-11-11 22:55:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:57,098 INFO L471 AbstractCegarLoop]: Abstraction has 3342 states and 4200 transitions. [2024-11-11 22:55:57,098 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 22:55:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4200 transitions. [2024-11-11 22:55:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-11 22:55:57,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:57,100 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 22:55:57,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:55:57,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:57,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:57,102 INFO L85 PathProgramCache]: Analyzing trace with hash -153632203, now seen corresponding path program 1 times [2024-11-11 22:55:57,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:57,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692378988] [2024-11-11 22:55:57,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,245 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 22:55:57,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:57,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692378988] [2024-11-11 22:55:57,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692378988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11446708] [2024-11-11 22:55:57,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:57,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:57,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:57,248 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 22:55:57,250 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 22:55:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:57,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:55:57,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:57,645 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 22:55:57,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:55:57,744 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 22:55:57,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11446708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:55:57,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:55:57,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-11 22:55:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723214871] [2024-11-11 22:55:57,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:55:57,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 22:55:57,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 22:55:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:55:57,746 INFO L87 Difference]: Start difference. First operand 3342 states and 4200 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 22:55:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:59,797 INFO L93 Difference]: Finished difference Result 7783 states and 9686 transitions. [2024-11-11 22:55:59,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:55:59,798 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 22:55:59,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:59,832 INFO L225 Difference]: With dead ends: 7783 [2024-11-11 22:55:59,833 INFO L226 Difference]: Without dead ends: 7780 [2024-11-11 22:55:59,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-11 22:55:59,838 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 1139 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:59,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1789 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:55:59,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7780 states. [2024-11-11 22:56:00,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7780 to 5132. [2024-11-11 22:56:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5132 states, 4015 states have (on average 1.2682440846824408) internal successors, (5092), 4079 states have internal predecessors, (5092), 548 states have call successors, (548), 452 states have call predecessors, (548), 567 states have return successors, (798), 607 states have call predecessors, (798), 545 states have call successors, (798) [2024-11-11 22:56:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 6438 transitions. [2024-11-11 22:56:00,415 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 6438 transitions. Word has length 74 [2024-11-11 22:56:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:00,415 INFO L471 AbstractCegarLoop]: Abstraction has 5132 states and 6438 transitions. [2024-11-11 22:56:00,416 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 22:56:00,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 6438 transitions. [2024-11-11 22:56:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:56:00,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:00,418 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 22:56:00,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 22:56:00,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-11 22:56:00,623 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:00,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 580512031, now seen corresponding path program 2 times [2024-11-11 22:56:00,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:00,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959856988] [2024-11-11 22:56:00,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:00,709 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 22:56:00,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959856988] [2024-11-11 22:56:00,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959856988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:00,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:00,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:00,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431251219] [2024-11-11 22:56:00,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:00,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:00,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:00,712 INFO L87 Difference]: Start difference. First operand 5132 states and 6438 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 22:56:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:01,643 INFO L93 Difference]: Finished difference Result 7814 states and 9811 transitions. [2024-11-11 22:56:01,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:01,644 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 22:56:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:01,663 INFO L225 Difference]: With dead ends: 7814 [2024-11-11 22:56:01,663 INFO L226 Difference]: Without dead ends: 3739 [2024-11-11 22:56:01,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:01,673 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 613 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:01,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 904 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2024-11-11 22:56:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3504. [2024-11-11 22:56:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 2743 states have (on average 1.2511848341232228) internal successors, (3432), 2785 states have internal predecessors, (3432), 380 states have call successors, (380), 308 states have call predecessors, (380), 379 states have return successors, (524), 417 states have call predecessors, (524), 377 states have call successors, (524) [2024-11-11 22:56:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 4336 transitions. [2024-11-11 22:56:02,012 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 4336 transitions. Word has length 77 [2024-11-11 22:56:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:02,012 INFO L471 AbstractCegarLoop]: Abstraction has 3504 states and 4336 transitions. [2024-11-11 22:56:02,013 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 22:56:02,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 4336 transitions. [2024-11-11 22:56:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:02,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:02,015 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] [2024-11-11 22:56:02,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:56:02,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:02,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash -838718193, now seen corresponding path program 1 times [2024-11-11 22:56:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:02,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064211578] [2024-11-11 22:56:02,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:02,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:02,154 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 22:56:02,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064211578] [2024-11-11 22:56:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064211578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:02,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:02,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:02,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541357990] [2024-11-11 22:56:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:02,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:02,157 INFO L87 Difference]: Start difference. First operand 3504 states and 4336 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:03,447 INFO L93 Difference]: Finished difference Result 3894 states and 4935 transitions. [2024-11-11 22:56:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:03,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:03,466 INFO L225 Difference]: With dead ends: 3894 [2024-11-11 22:56:03,466 INFO L226 Difference]: Without dead ends: 3742 [2024-11-11 22:56:03,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:03,468 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 764 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:03,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 855 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-11 22:56:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3655. [2024-11-11 22:56:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 2875 states have (on average 1.2636521739130435) internal successors, (3633), 2918 states have internal predecessors, (3633), 392 states have call successors, (392), 314 states have call predecessors, (392), 386 states have return successors, (539), 429 states have call predecessors, (539), 389 states have call successors, (539) [2024-11-11 22:56:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 4564 transitions. [2024-11-11 22:56:04,029 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 4564 transitions. Word has length 80 [2024-11-11 22:56:04,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:04,029 INFO L471 AbstractCegarLoop]: Abstraction has 3655 states and 4564 transitions. [2024-11-11 22:56:04,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 4564 transitions. [2024-11-11 22:56:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:04,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:04,034 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] [2024-11-11 22:56:04,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:56:04,034 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:04,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2080158709, now seen corresponding path program 1 times [2024-11-11 22:56:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172547450] [2024-11-11 22:56:04,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:04,184 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 22:56:04,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:04,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172547450] [2024-11-11 22:56:04,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172547450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:04,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:04,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:04,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125970460] [2024-11-11 22:56:04,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:04,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:04,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:04,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:04,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:04,187 INFO L87 Difference]: Start difference. First operand 3655 states and 4564 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:05,640 INFO L93 Difference]: Finished difference Result 4240 states and 5456 transitions. [2024-11-11 22:56:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:05,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:05,656 INFO L225 Difference]: With dead ends: 4240 [2024-11-11 22:56:05,657 INFO L226 Difference]: Without dead ends: 3937 [2024-11-11 22:56:05,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:05,660 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 759 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:05,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1381 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:05,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2024-11-11 22:56:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3797. [2024-11-11 22:56:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 2998 states have (on average 1.2728485657104736) internal successors, (3816), 3042 states have internal predecessors, (3816), 404 states have call successors, (404), 320 states have call predecessors, (404), 393 states have return successors, (553), 442 states have call predecessors, (553), 401 states have call successors, (553) [2024-11-11 22:56:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 4773 transitions. [2024-11-11 22:56:06,149 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 4773 transitions. Word has length 80 [2024-11-11 22:56:06,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:06,149 INFO L471 AbstractCegarLoop]: Abstraction has 3797 states and 4773 transitions. [2024-11-11 22:56:06,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 4773 transitions. [2024-11-11 22:56:06,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:06,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:06,152 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] [2024-11-11 22:56:06,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:56:06,153 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:06,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash 528628749, now seen corresponding path program 1 times [2024-11-11 22:56:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856694778] [2024-11-11 22:56:06,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:06,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,265 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 22:56:06,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:06,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856694778] [2024-11-11 22:56:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856694778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:06,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:06,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401797406] [2024-11-11 22:56:06,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:06,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:06,267 INFO L87 Difference]: Start difference. First operand 3797 states and 4773 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:07,680 INFO L93 Difference]: Finished difference Result 4749 states and 6221 transitions. [2024-11-11 22:56:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:56:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:07,696 INFO L225 Difference]: With dead ends: 4749 [2024-11-11 22:56:07,696 INFO L226 Difference]: Without dead ends: 4304 [2024-11-11 22:56:07,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:56:07,700 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 757 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:07,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1379 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:56:07,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2024-11-11 22:56:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4082. [2024-11-11 22:56:08,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 3245 states have (on average 1.289060092449923) internal successors, (4183), 3291 states have internal predecessors, (4183), 428 states have call successors, (428), 332 states have call predecessors, (428), 407 states have return successors, (585), 468 states have call predecessors, (585), 425 states have call successors, (585) [2024-11-11 22:56:08,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 5196 transitions. [2024-11-11 22:56:08,328 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 5196 transitions. Word has length 80 [2024-11-11 22:56:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:08,328 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 5196 transitions. [2024-11-11 22:56:08,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 5196 transitions. [2024-11-11 22:56:08,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:08,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:08,332 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] [2024-11-11 22:56:08,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:56:08,332 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:08,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash 474235851, now seen corresponding path program 1 times [2024-11-11 22:56:08,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:08,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764812940] [2024-11-11 22:56:08,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:08,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:08,458 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 22:56:08,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:08,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764812940] [2024-11-11 22:56:08,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764812940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:08,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:08,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:08,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683042473] [2024-11-11 22:56:08,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:08,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:08,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:08,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:08,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:08,461 INFO L87 Difference]: Start difference. First operand 4082 states and 5196 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:09,474 INFO L93 Difference]: Finished difference Result 5022 states and 6635 transitions. [2024-11-11 22:56:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:56:09,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:09,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:09,496 INFO L225 Difference]: With dead ends: 5022 [2024-11-11 22:56:09,497 INFO L226 Difference]: Without dead ends: 4292 [2024-11-11 22:56:09,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:09,501 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 633 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:09,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 825 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2024-11-11 22:56:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4082. [2024-11-11 22:56:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 3245 states have (on average 1.2875192604006163) internal successors, (4178), 3291 states have internal predecessors, (4178), 428 states have call successors, (428), 332 states have call predecessors, (428), 407 states have return successors, (585), 468 states have call predecessors, (585), 425 states have call successors, (585) [2024-11-11 22:56:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 5191 transitions. [2024-11-11 22:56:10,081 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 5191 transitions. Word has length 80 [2024-11-11 22:56:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:10,081 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 5191 transitions. [2024-11-11 22:56:10,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 5191 transitions. [2024-11-11 22:56:10,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:10,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:10,085 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] [2024-11-11 22:56:10,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:56:10,086 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:10,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 56839245, now seen corresponding path program 1 times [2024-11-11 22:56:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434890647] [2024-11-11 22:56:10,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:56:10,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:10,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434890647] [2024-11-11 22:56:10,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434890647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:10,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:10,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:10,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820764652] [2024-11-11 22:56:10,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:10,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:10,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:10,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:10,191 INFO L87 Difference]: Start difference. First operand 4082 states and 5191 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:11,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:11,238 INFO L93 Difference]: Finished difference Result 5016 states and 6609 transitions. [2024-11-11 22:56:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:56:11,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:11,250 INFO L225 Difference]: With dead ends: 5016 [2024-11-11 22:56:11,250 INFO L226 Difference]: Without dead ends: 4286 [2024-11-11 22:56:11,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:11,253 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 739 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:11,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 678 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4286 states. [2024-11-11 22:56:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4286 to 4082. [2024-11-11 22:56:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 3245 states have (on average 1.2859784283513096) internal successors, (4173), 3291 states have internal predecessors, (4173), 428 states have call successors, (428), 332 states have call predecessors, (428), 407 states have return successors, (585), 468 states have call predecessors, (585), 425 states have call successors, (585) [2024-11-11 22:56:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 5186 transitions. [2024-11-11 22:56:11,740 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 5186 transitions. Word has length 80 [2024-11-11 22:56:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:11,741 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 5186 transitions. [2024-11-11 22:56:11,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 5186 transitions. [2024-11-11 22:56:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:11,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:11,744 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] [2024-11-11 22:56:11,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:56:11,745 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 736111499, now seen corresponding path program 1 times [2024-11-11 22:56:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12701177] [2024-11-11 22:56:11,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,852 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 22:56:11,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:11,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12701177] [2024-11-11 22:56:11,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12701177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:11,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:11,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012484140] [2024-11-11 22:56:11,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:11,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:11,854 INFO L87 Difference]: Start difference. First operand 4082 states and 5186 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:13,738 INFO L93 Difference]: Finished difference Result 5875 states and 7856 transitions. [2024-11-11 22:56:13,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:56:13,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:13,762 INFO L225 Difference]: With dead ends: 5875 [2024-11-11 22:56:13,763 INFO L226 Difference]: Without dead ends: 5145 [2024-11-11 22:56:13,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:13,768 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 838 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:13,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1365 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:56:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5145 states. [2024-11-11 22:56:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 4609. [2024-11-11 22:56:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4609 states, 3700 states have (on average 1.3051351351351352) internal successors, (4829), 3750 states have internal predecessors, (4829), 472 states have call successors, (472), 356 states have call predecessors, (472), 435 states have return successors, (651), 516 states have call predecessors, (651), 469 states have call successors, (651) [2024-11-11 22:56:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4609 states to 4609 states and 5952 transitions. [2024-11-11 22:56:14,323 INFO L78 Accepts]: Start accepts. Automaton has 4609 states and 5952 transitions. Word has length 80 [2024-11-11 22:56:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:14,323 INFO L471 AbstractCegarLoop]: Abstraction has 4609 states and 5952 transitions. [2024-11-11 22:56:14,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4609 states and 5952 transitions. [2024-11-11 22:56:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:14,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:14,327 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] [2024-11-11 22:56:14,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:56:14,328 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:14,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1597281139, now seen corresponding path program 1 times [2024-11-11 22:56:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:14,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689673331] [2024-11-11 22:56:14,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:14,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,447 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 22:56:14,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:14,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689673331] [2024-11-11 22:56:14,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689673331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:14,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:14,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:14,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161564288] [2024-11-11 22:56:14,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:14,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:14,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:14,450 INFO L87 Difference]: Start difference. First operand 4609 states and 5952 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:15,937 INFO L93 Difference]: Finished difference Result 7618 states and 10406 transitions. [2024-11-11 22:56:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:56:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:15,955 INFO L225 Difference]: With dead ends: 7618 [2024-11-11 22:56:15,956 INFO L226 Difference]: Without dead ends: 6361 [2024-11-11 22:56:15,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:15,961 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 796 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:15,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1004 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:15,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6361 states. [2024-11-11 22:56:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6361 to 5702. [2024-11-11 22:56:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 4653 states have (on average 1.337416720395444) internal successors, (6223), 4711 states have internal predecessors, (6223), 556 states have call successors, (556), 404 states have call predecessors, (556), 491 states have return successors, (797), 608 states have call predecessors, (797), 553 states have call successors, (797) [2024-11-11 22:56:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7576 transitions. [2024-11-11 22:56:16,591 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7576 transitions. Word has length 80 [2024-11-11 22:56:16,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:16,591 INFO L471 AbstractCegarLoop]: Abstraction has 5702 states and 7576 transitions. [2024-11-11 22:56:16,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:16,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7576 transitions. [2024-11-11 22:56:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:16,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:16,596 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] [2024-11-11 22:56:16,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:56:16,597 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:16,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1036581361, now seen corresponding path program 1 times [2024-11-11 22:56:16,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:16,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592470318] [2024-11-11 22:56:16,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:16,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:16,693 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 22:56:16,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:16,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592470318] [2024-11-11 22:56:16,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592470318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:16,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:16,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:16,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885690013] [2024-11-11 22:56:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:16,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:16,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:16,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:16,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:16,695 INFO L87 Difference]: Start difference. First operand 5702 states and 7576 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:17,972 INFO L93 Difference]: Finished difference Result 8607 states and 11943 transitions. [2024-11-11 22:56:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:56:17,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:17,990 INFO L225 Difference]: With dead ends: 8607 [2024-11-11 22:56:17,991 INFO L226 Difference]: Without dead ends: 6258 [2024-11-11 22:56:17,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:17,999 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 286 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:18,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1126 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2024-11-11 22:56:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 5753. [2024-11-11 22:56:18,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 4704 states have (on average 1.3337585034013606) internal successors, (6274), 4762 states have internal predecessors, (6274), 556 states have call successors, (556), 404 states have call predecessors, (556), 491 states have return successors, (797), 608 states have call predecessors, (797), 553 states have call successors, (797) [2024-11-11 22:56:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 7627 transitions. [2024-11-11 22:56:18,810 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 7627 transitions. Word has length 80 [2024-11-11 22:56:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:18,810 INFO L471 AbstractCegarLoop]: Abstraction has 5753 states and 7627 transitions. [2024-11-11 22:56:18,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:18,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 7627 transitions. [2024-11-11 22:56:18,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:18,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:18,815 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] [2024-11-11 22:56:18,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:56:18,816 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:18,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1517661619, now seen corresponding path program 1 times [2024-11-11 22:56:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:18,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039695355] [2024-11-11 22:56:18,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,899 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 22:56:18,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:18,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039695355] [2024-11-11 22:56:18,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039695355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:18,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:18,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:18,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610638608] [2024-11-11 22:56:18,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:18,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:18,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:18,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:18,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:18,903 INFO L87 Difference]: Start difference. First operand 5753 states and 7627 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:20,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:20,520 INFO L93 Difference]: Finished difference Result 11460 states and 16032 transitions. [2024-11-11 22:56:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:20,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:20,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:20,554 INFO L225 Difference]: With dead ends: 11460 [2024-11-11 22:56:20,554 INFO L226 Difference]: Without dead ends: 9060 [2024-11-11 22:56:20,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:20,567 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 973 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:20,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1058 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9060 states. [2024-11-11 22:56:21,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9060 to 8029. [2024-11-11 22:56:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8029 states, 6690 states have (on average 1.3659192825112108) internal successors, (9138), 6764 states have internal predecessors, (9138), 728 states have call successors, (728), 506 states have call predecessors, (728), 609 states have return successors, (1051), 780 states have call predecessors, (1051), 725 states have call successors, (1051) [2024-11-11 22:56:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8029 states to 8029 states and 10917 transitions. [2024-11-11 22:56:21,437 INFO L78 Accepts]: Start accepts. Automaton has 8029 states and 10917 transitions. Word has length 80 [2024-11-11 22:56:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:21,437 INFO L471 AbstractCegarLoop]: Abstraction has 8029 states and 10917 transitions. [2024-11-11 22:56:21,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8029 states and 10917 transitions. [2024-11-11 22:56:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:21,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:21,441 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] [2024-11-11 22:56:21,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:56:21,441 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:21,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:21,442 INFO L85 PathProgramCache]: Analyzing trace with hash -84826900, now seen corresponding path program 1 times [2024-11-11 22:56:21,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:21,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405538704] [2024-11-11 22:56:21,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:21,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,541 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 22:56:21,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:21,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405538704] [2024-11-11 22:56:21,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405538704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:21,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:21,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697310216] [2024-11-11 22:56:21,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:21,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:21,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:21,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:21,543 INFO L87 Difference]: Start difference. First operand 8029 states and 10917 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:23,116 INFO L93 Difference]: Finished difference Result 13800 states and 19440 transitions. [2024-11-11 22:56:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:23,153 INFO L225 Difference]: With dead ends: 13800 [2024-11-11 22:56:23,154 INFO L226 Difference]: Without dead ends: 9124 [2024-11-11 22:56:23,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:56:23,171 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 299 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:23,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1126 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:23,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9124 states. [2024-11-11 22:56:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9124 to 8080. [2024-11-11 22:56:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8080 states, 6741 states have (on average 1.360628986797211) internal successors, (9172), 6815 states have internal predecessors, (9172), 728 states have call successors, (728), 506 states have call predecessors, (728), 609 states have return successors, (1051), 780 states have call predecessors, (1051), 725 states have call successors, (1051) [2024-11-11 22:56:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8080 states to 8080 states and 10951 transitions. [2024-11-11 22:56:24,200 INFO L78 Accepts]: Start accepts. Automaton has 8080 states and 10951 transitions. Word has length 80 [2024-11-11 22:56:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:24,200 INFO L471 AbstractCegarLoop]: Abstraction has 8080 states and 10951 transitions. [2024-11-11 22:56:24,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8080 states and 10951 transitions. [2024-11-11 22:56:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:24,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:24,205 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] [2024-11-11 22:56:24,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:56:24,205 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:24,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:24,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2134214742, now seen corresponding path program 1 times [2024-11-11 22:56:24,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:24,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736236761] [2024-11-11 22:56:24,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:24,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,312 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 22:56:24,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:24,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736236761] [2024-11-11 22:56:24,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736236761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:24,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:24,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:24,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294069724] [2024-11-11 22:56:24,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:24,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:24,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:24,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:24,314 INFO L87 Difference]: Start difference. First operand 8080 states and 10951 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:25,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:25,817 INFO L93 Difference]: Finished difference Result 14055 states and 19678 transitions. [2024-11-11 22:56:25,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:25,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:25,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:25,844 INFO L225 Difference]: With dead ends: 14055 [2024-11-11 22:56:25,845 INFO L226 Difference]: Without dead ends: 9328 [2024-11-11 22:56:25,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:56:25,858 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 309 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:25,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1126 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9328 states. [2024-11-11 22:56:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9328 to 8182. [2024-11-11 22:56:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8182 states, 6843 states have (on average 1.3552535437673534) internal successors, (9274), 6917 states have internal predecessors, (9274), 728 states have call successors, (728), 506 states have call predecessors, (728), 609 states have return successors, (1051), 780 states have call predecessors, (1051), 725 states have call successors, (1051) [2024-11-11 22:56:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8182 states to 8182 states and 11053 transitions. [2024-11-11 22:56:26,565 INFO L78 Accepts]: Start accepts. Automaton has 8182 states and 11053 transitions. Word has length 80 [2024-11-11 22:56:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:26,566 INFO L471 AbstractCegarLoop]: Abstraction has 8182 states and 11053 transitions. [2024-11-11 22:56:26,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8182 states and 11053 transitions. [2024-11-11 22:56:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:26,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:26,571 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] [2024-11-11 22:56:26,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 22:56:26,571 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:26,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1131393256, now seen corresponding path program 1 times [2024-11-11 22:56:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860680093] [2024-11-11 22:56:26,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,651 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 22:56:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860680093] [2024-11-11 22:56:26,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860680093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:26,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:26,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940376216] [2024-11-11 22:56:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:26,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:26,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:26,653 INFO L87 Difference]: Start difference. First operand 8182 states and 11053 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:28,539 INFO L93 Difference]: Finished difference Result 19907 states and 27795 transitions. [2024-11-11 22:56:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:28,592 INFO L225 Difference]: With dead ends: 19907 [2024-11-11 22:56:28,593 INFO L226 Difference]: Without dead ends: 15078 [2024-11-11 22:56:28,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:28,615 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 1065 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:28,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1058 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15078 states. [2024-11-11 22:56:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15078 to 12756. [2024-11-11 22:56:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12756 states, 10862 states have (on average 1.3776468422021728) internal successors, (14964), 10968 states have internal predecessors, (14964), 1051 states have call successors, (1051), 706 states have call predecessors, (1051), 841 states have return successors, (1538), 1103 states have call predecessors, (1538), 1048 states have call successors, (1538) [2024-11-11 22:56:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12756 states to 12756 states and 17553 transitions. [2024-11-11 22:56:29,684 INFO L78 Accepts]: Start accepts. Automaton has 12756 states and 17553 transitions. Word has length 80 [2024-11-11 22:56:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:29,685 INFO L471 AbstractCegarLoop]: Abstraction has 12756 states and 17553 transitions. [2024-11-11 22:56:29,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 22:56:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 12756 states and 17553 transitions. [2024-11-11 22:56:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:29,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:29,690 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] [2024-11-11 22:56:29,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 22:56:29,690 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:29,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash -633423353, now seen corresponding path program 1 times [2024-11-11 22:56:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:29,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512535053] [2024-11-11 22:56:29,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:29,780 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 22:56:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:29,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512535053] [2024-11-11 22:56:29,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512535053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:29,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:29,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146519345] [2024-11-11 22:56:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:29,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:29,782 INFO L87 Difference]: Start difference. First operand 12756 states and 17553 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:31,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:31,751 INFO L93 Difference]: Finished difference Result 24613 states and 34517 transitions. [2024-11-11 22:56:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:56:31,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 80 [2024-11-11 22:56:31,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:31,790 INFO L225 Difference]: With dead ends: 24613 [2024-11-11 22:56:31,791 INFO L226 Difference]: Without dead ends: 15210 [2024-11-11 22:56:31,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:56:31,813 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 311 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:31,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1121 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:31,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15210 states. [2024-11-11 22:56:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15210 to 12858. [2024-11-11 22:56:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12858 states, 10964 states have (on average 1.3710324699014957) internal successors, (15032), 11070 states have internal predecessors, (15032), 1051 states have call successors, (1051), 706 states have call predecessors, (1051), 841 states have return successors, (1538), 1103 states have call predecessors, (1538), 1048 states have call successors, (1538) [2024-11-11 22:56:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12858 states to 12858 states and 17621 transitions. [2024-11-11 22:56:32,873 INFO L78 Accepts]: Start accepts. Automaton has 12858 states and 17621 transitions. Word has length 80 [2024-11-11 22:56:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:32,873 INFO L471 AbstractCegarLoop]: Abstraction has 12858 states and 17621 transitions. [2024-11-11 22:56:32,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 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 22:56:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 12858 states and 17621 transitions. [2024-11-11 22:56:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:32,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:32,877 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] [2024-11-11 22:56:32,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 22:56:32,878 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:32,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash -358663739, now seen corresponding path program 1 times [2024-11-11 22:56:32,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:32,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888540592] [2024-11-11 22:56:32,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:32,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:32,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:33,018 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 22:56:33,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:33,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888540592] [2024-11-11 22:56:33,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888540592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:33,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:33,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:33,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844606060] [2024-11-11 22:56:33,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:33,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:33,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:33,020 INFO L87 Difference]: Start difference. First operand 12858 states and 17621 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:34,749 INFO L93 Difference]: Finished difference Result 15702 states and 21558 transitions. [2024-11-11 22:56:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:56:34,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:34,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:34,782 INFO L225 Difference]: With dead ends: 15702 [2024-11-11 22:56:34,782 INFO L226 Difference]: Without dead ends: 10536 [2024-11-11 22:56:34,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:56:34,797 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 903 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:34,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1148 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10536 states. [2024-11-11 22:56:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10536 to 8900. [2024-11-11 22:56:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8900 states, 7478 states have (on average 1.3434073281626102) internal successors, (10046), 7552 states have internal predecessors, (10046), 777 states have call successors, (777), 540 states have call predecessors, (777), 643 states have return successors, (1036), 821 states have call predecessors, (1036), 774 states have call successors, (1036) [2024-11-11 22:56:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8900 states to 8900 states and 11859 transitions. [2024-11-11 22:56:35,657 INFO L78 Accepts]: Start accepts. Automaton has 8900 states and 11859 transitions. Word has length 80 [2024-11-11 22:56:35,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:35,658 INFO L471 AbstractCegarLoop]: Abstraction has 8900 states and 11859 transitions. [2024-11-11 22:56:35,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8900 states and 11859 transitions. [2024-11-11 22:56:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:35,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:35,661 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] [2024-11-11 22:56:35,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 22:56:35,661 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:35,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1564564295, now seen corresponding path program 1 times [2024-11-11 22:56:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4977490] [2024-11-11 22:56:35,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:35,795 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 22:56:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:35,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4977490] [2024-11-11 22:56:35,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4977490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:35,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:35,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661680587] [2024-11-11 22:56:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:35,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:35,798 INFO L87 Difference]: Start difference. First operand 8900 states and 11859 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:37,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:37,354 INFO L93 Difference]: Finished difference Result 11174 states and 15054 transitions. [2024-11-11 22:56:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:56:37,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:37,383 INFO L225 Difference]: With dead ends: 11174 [2024-11-11 22:56:37,383 INFO L226 Difference]: Without dead ends: 7757 [2024-11-11 22:56:37,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:56:37,394 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 890 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:37,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1148 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:56:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7757 states. [2024-11-11 22:56:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7757 to 6691. [2024-11-11 22:56:38,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 5539 states have (on average 1.322801949810435) internal successors, (7327), 5597 states have internal predecessors, (7327), 618 states have call successors, (618), 445 states have call predecessors, (618), 532 states have return successors, (801), 658 states have call predecessors, (801), 615 states have call successors, (801) [2024-11-11 22:56:38,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 8746 transitions. [2024-11-11 22:56:38,100 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 8746 transitions. Word has length 80 [2024-11-11 22:56:38,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:38,100 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 8746 transitions. [2024-11-11 22:56:38,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:38,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 8746 transitions. [2024-11-11 22:56:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:38,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:38,104 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] [2024-11-11 22:56:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 22:56:38,105 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:38,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1626603909, now seen corresponding path program 1 times [2024-11-11 22:56:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738217748] [2024-11-11 22:56:38,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:38,240 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 22:56:38,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:38,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738217748] [2024-11-11 22:56:38,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738217748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:38,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:38,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:38,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075457497] [2024-11-11 22:56:38,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:38,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:38,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:38,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:38,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:38,242 INFO L87 Difference]: Start difference. First operand 6691 states and 8746 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:39,665 INFO L93 Difference]: Finished difference Result 10930 states and 14631 transitions. [2024-11-11 22:56:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:56:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:39,688 INFO L225 Difference]: With dead ends: 10930 [2024-11-11 22:56:39,688 INFO L226 Difference]: Without dead ends: 7593 [2024-11-11 22:56:39,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:56:39,695 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 699 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:39,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 824 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:39,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2024-11-11 22:56:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 6679. [2024-11-11 22:56:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 5527 states have (on average 1.3148181653700017) internal successors, (7267), 5585 states have internal predecessors, (7267), 618 states have call successors, (618), 445 states have call predecessors, (618), 532 states have return successors, (801), 658 states have call predecessors, (801), 615 states have call successors, (801) [2024-11-11 22:56:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 8686 transitions. [2024-11-11 22:56:40,378 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 8686 transitions. Word has length 80 [2024-11-11 22:56:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:40,379 INFO L471 AbstractCegarLoop]: Abstraction has 6679 states and 8686 transitions. [2024-11-11 22:56:40,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 8686 transitions. [2024-11-11 22:56:40,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:40,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:40,382 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] [2024-11-11 22:56:40,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 22:56:40,382 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:40,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:40,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1767152519, now seen corresponding path program 1 times [2024-11-11 22:56:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:40,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656213231] [2024-11-11 22:56:40,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:40,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:40,501 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 22:56:40,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:40,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656213231] [2024-11-11 22:56:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656213231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:40,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:40,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:40,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076278396] [2024-11-11 22:56:40,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:40,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:40,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:40,503 INFO L87 Difference]: Start difference. First operand 6679 states and 8686 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:41,895 INFO L93 Difference]: Finished difference Result 12034 states and 16004 transitions. [2024-11-11 22:56:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:41,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:41,918 INFO L225 Difference]: With dead ends: 12034 [2024-11-11 22:56:41,918 INFO L226 Difference]: Without dead ends: 8708 [2024-11-11 22:56:41,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-11 22:56:41,927 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 824 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:41,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 828 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:41,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8708 states. [2024-11-11 22:56:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8708 to 7104. [2024-11-11 22:56:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 5918 states have (on average 1.298411625549172) internal successors, (7684), 5976 states have internal predecessors, (7684), 629 states have call successors, (629), 468 states have call predecessors, (629), 555 states have return successors, (835), 669 states have call predecessors, (835), 626 states have call successors, (835) [2024-11-11 22:56:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 9148 transitions. [2024-11-11 22:56:42,625 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 9148 transitions. Word has length 80 [2024-11-11 22:56:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:42,626 INFO L471 AbstractCegarLoop]: Abstraction has 7104 states and 9148 transitions. [2024-11-11 22:56:42,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:42,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 9148 transitions. [2024-11-11 22:56:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:42,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:42,629 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] [2024-11-11 22:56:42,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 22:56:42,629 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:42,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1633139013, now seen corresponding path program 1 times [2024-11-11 22:56:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:42,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257758713] [2024-11-11 22:56:42,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:42,756 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 22:56:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:42,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257758713] [2024-11-11 22:56:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257758713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:42,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:42,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752959807] [2024-11-11 22:56:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:42,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:42,758 INFO L87 Difference]: Start difference. First operand 7104 states and 9148 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:44,424 INFO L93 Difference]: Finished difference Result 11192 states and 14694 transitions. [2024-11-11 22:56:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 22:56:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:44,448 INFO L225 Difference]: With dead ends: 11192 [2024-11-11 22:56:44,448 INFO L226 Difference]: Without dead ends: 8572 [2024-11-11 22:56:44,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-11 22:56:44,455 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 916 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:44,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1132 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:44,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8572 states. [2024-11-11 22:56:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8572 to 7088. [2024-11-11 22:56:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7088 states, 5906 states have (on average 1.2963088384693533) internal successors, (7656), 5960 states have internal predecessors, (7656), 629 states have call successors, (629), 468 states have call predecessors, (629), 551 states have return successors, (817), 667 states have call predecessors, (817), 626 states have call successors, (817) [2024-11-11 22:56:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7088 states to 7088 states and 9102 transitions. [2024-11-11 22:56:45,151 INFO L78 Accepts]: Start accepts. Automaton has 7088 states and 9102 transitions. Word has length 80 [2024-11-11 22:56:45,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:45,151 INFO L471 AbstractCegarLoop]: Abstraction has 7088 states and 9102 transitions. [2024-11-11 22:56:45,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7088 states and 9102 transitions. [2024-11-11 22:56:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:45,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:45,154 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] [2024-11-11 22:56:45,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 22:56:45,154 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:45,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:45,155 INFO L85 PathProgramCache]: Analyzing trace with hash -172299321, now seen corresponding path program 1 times [2024-11-11 22:56:45,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:45,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222336953] [2024-11-11 22:56:45,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:45,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:45,287 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 22:56:45,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222336953] [2024-11-11 22:56:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222336953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:45,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:45,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354869673] [2024-11-11 22:56:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:45,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:45,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:45,289 INFO L87 Difference]: Start difference. First operand 7088 states and 9102 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:47,217 INFO L93 Difference]: Finished difference Result 15562 states and 20275 transitions. [2024-11-11 22:56:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 22:56:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:56:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:47,250 INFO L225 Difference]: With dead ends: 15562 [2024-11-11 22:56:47,250 INFO L226 Difference]: Without dead ends: 11828 [2024-11-11 22:56:47,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-11 22:56:47,261 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 936 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:47,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 1136 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:47,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2024-11-11 22:56:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 9474. [2024-11-11 22:56:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9474 states, 8002 states have (on average 1.2991752061984503) internal successors, (10396), 8080 states have internal predecessors, (10396), 787 states have call successors, (787), 576 states have call predecessors, (787), 683 states have return successors, (1039), 827 states have call predecessors, (1039), 784 states have call successors, (1039) [2024-11-11 22:56:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9474 states to 9474 states and 12222 transitions. [2024-11-11 22:56:48,420 INFO L78 Accepts]: Start accepts. Automaton has 9474 states and 12222 transitions. Word has length 80 [2024-11-11 22:56:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:48,421 INFO L471 AbstractCegarLoop]: Abstraction has 9474 states and 12222 transitions. [2024-11-11 22:56:48,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 9474 states and 12222 transitions. [2024-11-11 22:56:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:56:48,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:48,423 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] [2024-11-11 22:56:48,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 22:56:48,424 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:48,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:48,424 INFO L85 PathProgramCache]: Analyzing trace with hash 46555397, now seen corresponding path program 1 times [2024-11-11 22:56:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:48,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528529506] [2024-11-11 22:56:48,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:48,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:56:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:56:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:56:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:48,482 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 22:56:48,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:48,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528529506] [2024-11-11 22:56:48,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528529506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:48,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:48,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:56:48,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019017725] [2024-11-11 22:56:48,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:48,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:56:48,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:48,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:56:48,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:56:48,484 INFO L87 Difference]: Start difference. First operand 9474 states and 12222 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-11 22:56:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:50,234 INFO L93 Difference]: Finished difference Result 19542 states and 25593 transitions. [2024-11-11 22:56:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:50,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-11 22:56:50,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:50,268 INFO L225 Difference]: With dead ends: 19542 [2024-11-11 22:56:50,268 INFO L226 Difference]: Without dead ends: 13422 [2024-11-11 22:56:50,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:50,284 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 818 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:50,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 626 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:56:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13422 states. [2024-11-11 22:56:51,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13422 to 11338. [2024-11-11 22:56:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11338 states, 9646 states have (on average 1.2935931992535765) internal successors, (12478), 9752 states have internal predecessors, (12478), 915 states have call successors, (915), 664 states have call predecessors, (915), 775 states have return successors, (1158), 931 states have call predecessors, (1158), 912 states have call successors, (1158) [2024-11-11 22:56:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11338 states to 11338 states and 14551 transitions. [2024-11-11 22:56:51,256 INFO L78 Accepts]: Start accepts. Automaton has 11338 states and 14551 transitions. Word has length 80 [2024-11-11 22:56:51,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:51,256 INFO L471 AbstractCegarLoop]: Abstraction has 11338 states and 14551 transitions. [2024-11-11 22:56:51,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-11 22:56:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 11338 states and 14551 transitions. [2024-11-11 22:56:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:56:51,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:51,259 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 22:56:51,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 22:56:51,259 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:51,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1894614631, now seen corresponding path program 1 times [2024-11-11 22:56:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:51,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687151997] [2024-11-11 22:56:51,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:51,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:56:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:51,346 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 22:56:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687151997] [2024-11-11 22:56:51,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687151997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:51,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:51,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:56:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615171998] [2024-11-11 22:56:51,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:51,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:56:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:56:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:51,348 INFO L87 Difference]: Start difference. First operand 11338 states and 14551 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 22:56:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:53,476 INFO L93 Difference]: Finished difference Result 18210 states and 22968 transitions. [2024-11-11 22:56:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-11 22:56:53,476 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 22:56:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:53,512 INFO L225 Difference]: With dead ends: 18210 [2024-11-11 22:56:53,512 INFO L226 Difference]: Without dead ends: 13573 [2024-11-11 22:56:53,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-11 22:56:53,525 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 702 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:53,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1208 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:56:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13573 states. [2024-11-11 22:56:54,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13573 to 13253. [2024-11-11 22:56:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13253 states, 11104 states have (on average 1.2789085014409223) internal successors, (14201), 11253 states have internal predecessors, (14201), 1119 states have call successors, (1119), 838 states have call predecessors, (1119), 1028 states have return successors, (1540), 1171 states have call predecessors, (1540), 1116 states have call successors, (1540) [2024-11-11 22:56:54,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13253 states to 13253 states and 16860 transitions. [2024-11-11 22:56:54,839 INFO L78 Accepts]: Start accepts. Automaton has 13253 states and 16860 transitions. Word has length 84 [2024-11-11 22:56:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:54,840 INFO L471 AbstractCegarLoop]: Abstraction has 13253 states and 16860 transitions. [2024-11-11 22:56:54,840 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 22:56:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13253 states and 16860 transitions. [2024-11-11 22:56:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:56:54,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:54,843 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 22:56:54,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-11 22:56:54,844 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:54,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2046170973, now seen corresponding path program 1 times [2024-11-11 22:56:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:54,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795041376] [2024-11-11 22:56:54,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 22:56:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:54,953 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 22:56:54,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:54,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795041376] [2024-11-11 22:56:54,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795041376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:54,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:54,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:56:54,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360755233] [2024-11-11 22:56:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:54,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:56:54,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:54,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:56:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:54,958 INFO L87 Difference]: Start difference. First operand 13253 states and 16860 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)