./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 3061b6dc 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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:18:06,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:18:06,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:18:06,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:18:06,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:18:06,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:18:06,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:18:06,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:18:06,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:18:06,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:18:06,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:18:06,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:18:06,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:18:06,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:18:06,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:18:06,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:18:06,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:18:06,418 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:18:06,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:18:06,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:18:06,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:18:06,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:18:06,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:18:06,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:18:06,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:18:06,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:18:06,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:18:06,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:18:06,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:18:06,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:18:06,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:18:06,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:18:06,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:18:06,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:18:06,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:18:06,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:18:06,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:18:06,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:18:06,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:18:06,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:18:06,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:18:06,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:18:06,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a31ccbb50ed824a1b6eea67c3747e38f48ab93613ea1abf86baf8d129dc78945 [2024-11-18 16:18:06,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:18:06,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:18:06,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:18:06,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:18:06,656 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:18:06,657 INFO L431 ainManager$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 [2024-11-18 16:18:07,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:18:08,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:18:08,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2024-11-18 16:18:08,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4926445/c9873ff1f1024b19bafcc84ea0642578/FLAG888ac72b4 [2024-11-18 16:18:08,497 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4926445/c9873ff1f1024b19bafcc84ea0642578 [2024-11-18 16:18:08,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:18:08,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:18:08,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:18:08,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:18:08,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:18:08,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:08,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200cf2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08, skipping insertion in model container [2024-11-18 16:18:08,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:08,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:18:08,713 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] [2024-11-18 16:18:08,774 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] [2024-11-18 16:18:08,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:18:08,819 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:18:08,831 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] [2024-11-18 16:18:08,849 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] [2024-11-18 16:18:08,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:18:08,899 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:18:08,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08 WrapperNode [2024-11-18 16:18:08,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:18:08,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:18:08,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:18:08,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:18:08,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:08,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:08,999 INFO L138 Inliner]: procedures = 59, calls = 67, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 534 [2024-11-18 16:18:09,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:18:09,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:18:09,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:18:09,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:18:09,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,013 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,025 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]. [2024-11-18 16:18:09,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:18:09,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:18:09,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:18:09,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:18:09,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (1/1) ... [2024-11-18 16:18:09,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:18:09,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:18:09,098 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) [2024-11-18 16:18:09,102 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 [2024-11-18 16:18:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:18:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-18 16:18:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-18 16:18:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-18 16:18:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-18 16:18:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-18 16:18:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-18 16:18:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-18 16:18:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-18 16:18:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-18 16:18:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-18 16:18:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:18:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-18 16:18:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-18 16:18:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-18 16:18:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-18 16:18:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:18:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:18:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-18 16:18:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-18 16:18:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-18 16:18:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-18 16:18:09,225 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:18:09,227 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:18:09,719 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-18 16:18:09,720 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:18:09,741 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:18:09,741 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-18 16:18:09,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:09 BoogieIcfgContainer [2024-11-18 16:18:09,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:18:09,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:18:09,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:18:09,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:18:09,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:18:08" (1/3) ... [2024-11-18 16:18:09,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393ac31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:18:09, skipping insertion in model container [2024-11-18 16:18:09,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:08" (2/3) ... [2024-11-18 16:18:09,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393ac31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:18:09, skipping insertion in model container [2024-11-18 16:18:09,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:09" (3/3) ... [2024-11-18 16:18:09,750 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2024-11-18 16:18:09,767 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:18:09,767 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:18:09,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:18:09,880 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;@318ab823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:18:09,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:18:09,885 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) [2024-11-18 16:18:09,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:09,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:09,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:09,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:09,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 948364097, now seen corresponding path program 1 times [2024-11-18 16:18:09,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:09,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154336501] [2024-11-18 16:18:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:09,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154336501] [2024-11-18 16:18:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154336501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358321426] [2024-11-18 16:18:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:10,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:10,391 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 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:10,910 INFO L93 Difference]: Finished difference Result 623 states and 950 transitions. [2024-11-18 16:18:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:10,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 [2024-11-18 16:18:10,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:10,927 INFO L225 Difference]: With dead ends: 623 [2024-11-18 16:18:10,927 INFO L226 Difference]: Without dead ends: 362 [2024-11-18 16:18:10,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:10,935 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 301 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:10,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 881 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-18 16:18:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2024-11-18 16:18:11,005 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) [2024-11-18 16:18:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 506 transitions. [2024-11-18 16:18:11,009 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 506 transitions. Word has length 65 [2024-11-18 16:18:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:11,012 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 506 transitions. [2024-11-18 16:18:11,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 506 transitions. [2024-11-18 16:18:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:11,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:11,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:11,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:18:11,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:11,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1667714559, now seen corresponding path program 1 times [2024-11-18 16:18:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159661398] [2024-11-18 16:18:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:11,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159661398] [2024-11-18 16:18:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159661398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:11,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:11,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598762087] [2024-11-18 16:18:11,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:11,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:11,223 INFO L87 Difference]: Start difference. First operand 355 states and 506 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:11,739 INFO L93 Difference]: Finished difference Result 672 states and 937 transitions. [2024-11-18 16:18:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:11,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 [2024-11-18 16:18:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:11,748 INFO L225 Difference]: With dead ends: 672 [2024-11-18 16:18:11,748 INFO L226 Difference]: Without dead ends: 495 [2024-11-18 16:18:11,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:11,750 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 525 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:11,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1089 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-18 16:18:11,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 451. [2024-11-18 16:18:11,805 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) [2024-11-18 16:18:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 640 transitions. [2024-11-18 16:18:11,808 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 640 transitions. Word has length 65 [2024-11-18 16:18:11,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:11,808 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 640 transitions. [2024-11-18 16:18:11,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:11,808 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 640 transitions. [2024-11-18 16:18:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:11,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:11,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:11,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:18:11,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:11,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash 598666627, now seen corresponding path program 1 times [2024-11-18 16:18:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:11,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14209080] [2024-11-18 16:18:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:11,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:11,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:11,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14209080] [2024-11-18 16:18:11,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14209080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:11,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:11,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715691866] [2024-11-18 16:18:11,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:11,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:11,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:11,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:11,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:11,924 INFO L87 Difference]: Start difference. First operand 451 states and 640 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:11,965 INFO L93 Difference]: Finished difference Result 723 states and 1013 transitions. [2024-11-18 16:18:11,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:11,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 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 [2024-11-18 16:18:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:11,969 INFO L225 Difference]: With dead ends: 723 [2024-11-18 16:18:11,969 INFO L226 Difference]: Without dead ends: 456 [2024-11-18 16:18:11,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:11,971 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 0 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:11,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1850 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-18 16:18:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-18 16:18:11,997 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) [2024-11-18 16:18:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 643 transitions. [2024-11-18 16:18:12,000 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 643 transitions. Word has length 65 [2024-11-18 16:18:12,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:12,001 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 643 transitions. [2024-11-18 16:18:12,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 643 transitions. [2024-11-18 16:18:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:12,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:12,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:12,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:18:12,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:12,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash -430692671, now seen corresponding path program 1 times [2024-11-18 16:18:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:12,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305338688] [2024-11-18 16:18:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:12,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:12,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305338688] [2024-11-18 16:18:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305338688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:12,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:12,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:12,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117397470] [2024-11-18 16:18:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:12,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:12,074 INFO L87 Difference]: Start difference. First operand 456 states and 643 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:12,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:12,107 INFO L93 Difference]: Finished difference Result 743 states and 1031 transitions. [2024-11-18 16:18:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:12,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 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 [2024-11-18 16:18:12,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:12,110 INFO L225 Difference]: With dead ends: 743 [2024-11-18 16:18:12,110 INFO L226 Difference]: Without dead ends: 471 [2024-11-18 16:18:12,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:12,111 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 0 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:12,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1850 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-18 16:18:12,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-11-18 16:18:12,136 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) [2024-11-18 16:18:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 658 transitions. [2024-11-18 16:18:12,139 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 658 transitions. Word has length 65 [2024-11-18 16:18:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:12,140 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 658 transitions. [2024-11-18 16:18:12,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 658 transitions. [2024-11-18 16:18:12,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:12,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:12,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:12,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:18:12,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:12,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash 955510723, now seen corresponding path program 1 times [2024-11-18 16:18:12,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:12,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223433993] [2024-11-18 16:18:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:12,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223433993] [2024-11-18 16:18:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223433993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:12,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:12,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:12,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613259390] [2024-11-18 16:18:12,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:12,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:12,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:12,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:12,270 INFO L87 Difference]: Start difference. First operand 471 states and 658 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:12,782 INFO L93 Difference]: Finished difference Result 842 states and 1139 transitions. [2024-11-18 16:18:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:18:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 [2024-11-18 16:18:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:12,786 INFO L225 Difference]: With dead ends: 842 [2024-11-18 16:18:12,786 INFO L226 Difference]: Without dead ends: 557 [2024-11-18 16:18:12,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:18:12,788 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 539 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:12,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 921 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-18 16:18:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 483. [2024-11-18 16:18:12,810 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) [2024-11-18 16:18:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 668 transitions. [2024-11-18 16:18:12,813 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 668 transitions. Word has length 65 [2024-11-18 16:18:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:12,813 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 668 transitions. [2024-11-18 16:18:12,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 668 transitions. [2024-11-18 16:18:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:12,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:12,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:12,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:18:12,815 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:12,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash 821497217, now seen corresponding path program 1 times [2024-11-18 16:18:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634654141] [2024-11-18 16:18:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:12,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:12,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:12,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634654141] [2024-11-18 16:18:12,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634654141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:12,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:12,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457211671] [2024-11-18 16:18:12,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:12,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:12,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:12,858 INFO L87 Difference]: Start difference. First operand 483 states and 668 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:13,153 INFO L93 Difference]: Finished difference Result 1073 states and 1444 transitions. [2024-11-18 16:18:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-18 16:18:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:13,160 INFO L225 Difference]: With dead ends: 1073 [2024-11-18 16:18:13,160 INFO L226 Difference]: Without dead ends: 777 [2024-11-18 16:18:13,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:13,163 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 498 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:13,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 455 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-18 16:18:13,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 773. [2024-11-18 16:18:13,207 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) [2024-11-18 16:18:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1047 transitions. [2024-11-18 16:18:13,211 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1047 transitions. Word has length 65 [2024-11-18 16:18:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:13,212 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1047 transitions. [2024-11-18 16:18:13,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1047 transitions. [2024-11-18 16:18:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:18:13,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:13,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:13,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:18:13,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:13,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash 379770828, now seen corresponding path program 1 times [2024-11-18 16:18:13,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:13,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925533217] [2024-11-18 16:18:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:13,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:13,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925533217] [2024-11-18 16:18:13,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925533217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:13,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:13,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538769988] [2024-11-18 16:18:13,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:13,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:13,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:13,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:13,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:13,264 INFO L87 Difference]: Start difference. First operand 773 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:13,353 INFO L93 Difference]: Finished difference Result 1884 states and 2506 transitions. [2024-11-18 16:18:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:13,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 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 [2024-11-18 16:18:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:13,360 INFO L225 Difference]: With dead ends: 1884 [2024-11-18 16:18:13,361 INFO L226 Difference]: Without dead ends: 1277 [2024-11-18 16:18:13,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:13,363 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 103 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:13,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 709 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-18 16:18:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1254. [2024-11-18 16:18:13,464 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) [2024-11-18 16:18:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1645 transitions. [2024-11-18 16:18:13,469 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1645 transitions. Word has length 66 [2024-11-18 16:18:13,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:13,469 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1645 transitions. [2024-11-18 16:18:13,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:13,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1645 transitions. [2024-11-18 16:18:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:18:13,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:13,471 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:13,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:18:13,472 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:13,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1838010487, now seen corresponding path program 1 times [2024-11-18 16:18:13,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:13,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722983779] [2024-11-18 16:18:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:13,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:13,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722983779] [2024-11-18 16:18:13,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722983779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:13,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:13,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:13,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609607129] [2024-11-18 16:18:13,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:13,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:13,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:13,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:13,507 INFO L87 Difference]: Start difference. First operand 1254 states and 1645 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:13,627 INFO L93 Difference]: Finished difference Result 3282 states and 4262 transitions. [2024-11-18 16:18:13,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 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 [2024-11-18 16:18:13,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:13,637 INFO L225 Difference]: With dead ends: 3282 [2024-11-18 16:18:13,638 INFO L226 Difference]: Without dead ends: 2214 [2024-11-18 16:18:13,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:13,642 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 343 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:13,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 480 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-18 16:18:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2116. [2024-11-18 16:18:13,802 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) [2024-11-18 16:18:13,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2706 transitions. [2024-11-18 16:18:13,817 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2706 transitions. Word has length 66 [2024-11-18 16:18:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:13,817 INFO L471 AbstractCegarLoop]: Abstraction has 2116 states and 2706 transitions. [2024-11-18 16:18:13,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2706 transitions. [2024-11-18 16:18:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 16:18:13,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:13,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:13,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:18:13,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:13,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:13,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1147220843, now seen corresponding path program 1 times [2024-11-18 16:18:13,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095163406] [2024-11-18 16:18:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:13,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:13,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095163406] [2024-11-18 16:18:13,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095163406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:13,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:13,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:13,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283487741] [2024-11-18 16:18:13,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:13,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:13,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:13,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:13,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:13,857 INFO L87 Difference]: Start difference. First operand 2116 states and 2706 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:14,014 INFO L93 Difference]: Finished difference Result 4818 states and 6120 transitions. [2024-11-18 16:18:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:14,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 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 [2024-11-18 16:18:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:14,029 INFO L225 Difference]: With dead ends: 4818 [2024-11-18 16:18:14,029 INFO L226 Difference]: Without dead ends: 2888 [2024-11-18 16:18:14,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:14,035 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 343 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:14,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 495 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-11-18 16:18:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2848. [2024-11-18 16:18:14,205 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) [2024-11-18 16:18:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3599 transitions. [2024-11-18 16:18:14,218 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3599 transitions. Word has length 72 [2024-11-18 16:18:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:14,219 INFO L471 AbstractCegarLoop]: Abstraction has 2848 states and 3599 transitions. [2024-11-18 16:18:14,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:18:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3599 transitions. [2024-11-18 16:18:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 16:18:14,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:14,221 INFO L215 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] [2024-11-18 16:18:14,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:18:14,221 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:14,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash 687806751, now seen corresponding path program 1 times [2024-11-18 16:18:14,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:14,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024034232] [2024-11-18 16:18:14,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:14,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024034232] [2024-11-18 16:18:14,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024034232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:14,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:14,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541900531] [2024-11-18 16:18:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:14,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:14,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:14,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:14,285 INFO L87 Difference]: Start difference. First operand 2848 states and 3599 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-18 16:18:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:14,550 INFO L93 Difference]: Finished difference Result 3379 states and 4254 transitions. [2024-11-18 16:18:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 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 [2024-11-18 16:18:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:14,565 INFO L225 Difference]: With dead ends: 3379 [2024-11-18 16:18:14,566 INFO L226 Difference]: Without dead ends: 3376 [2024-11-18 16:18:14,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:14,568 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 687 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:14,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 474 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-11-18 16:18:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3342. [2024-11-18 16:18:14,782 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) [2024-11-18 16:18:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4200 transitions. [2024-11-18 16:18:14,797 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4200 transitions. Word has length 73 [2024-11-18 16:18:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:14,797 INFO L471 AbstractCegarLoop]: Abstraction has 3342 states and 4200 transitions. [2024-11-18 16:18:14,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-18 16:18:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4200 transitions. [2024-11-18 16:18:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 16:18:14,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:14,799 INFO L215 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] [2024-11-18 16:18:14,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:18:14,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:14,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash -153632203, now seen corresponding path program 1 times [2024-11-18 16:18:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:14,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143527055] [2024-11-18 16:18:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:14,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:14,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143527055] [2024-11-18 16:18:14,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143527055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:18:14,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91763616] [2024-11-18 16:18:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:14,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:18:14,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:18:14,910 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) [2024-11-18 16:18:14,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 16:18:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:15,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 16:18:15,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:18:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:15,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:18:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:15,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91763616] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:18:15,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:18:15,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-18 16:18:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237456236] [2024-11-18 16:18:15,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:18:15,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:18:15,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:15,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:18:15,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:15,359 INFO L87 Difference]: Start difference. First operand 3342 states and 4200 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-18 16:18:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:15,949 INFO L93 Difference]: Finished difference Result 7223 states and 9054 transitions. [2024-11-18 16:18:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:18:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 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 [2024-11-18 16:18:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:15,981 INFO L225 Difference]: With dead ends: 7223 [2024-11-18 16:18:15,982 INFO L226 Difference]: Without dead ends: 7220 [2024-11-18 16:18:15,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:15,986 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 1088 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:15,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1530 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2024-11-18 16:18:16,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 5132. [2024-11-18 16:18:16,402 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) [2024-11-18 16:18:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 6438 transitions. [2024-11-18 16:18:16,425 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 6438 transitions. Word has length 74 [2024-11-18 16:18:16,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:16,426 INFO L471 AbstractCegarLoop]: Abstraction has 5132 states and 6438 transitions. [2024-11-18 16:18:16,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-18 16:18:16,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 6438 transitions. [2024-11-18 16:18:16,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 16:18:16,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:16,429 INFO L215 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] [2024-11-18 16:18:16,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 16:18:16,633 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 [2024-11-18 16:18:16,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:16,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 580512031, now seen corresponding path program 2 times [2024-11-18 16:18:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:16,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478381253] [2024-11-18 16:18:16,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 16:18:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:16,650 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 16:18:16,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 16:18:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:16,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478381253] [2024-11-18 16:18:16,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478381253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:16,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:16,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89204777] [2024-11-18 16:18:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:16,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:16,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:16,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:16,676 INFO L87 Difference]: Start difference. First operand 5132 states and 6438 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-18 16:18:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:16,960 INFO L93 Difference]: Finished difference Result 7599 states and 9567 transitions. [2024-11-18 16:18:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 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 [2024-11-18 16:18:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:16,977 INFO L225 Difference]: With dead ends: 7599 [2024-11-18 16:18:16,977 INFO L226 Difference]: Without dead ends: 3524 [2024-11-18 16:18:16,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:16,988 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 342 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:16,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 575 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2024-11-18 16:18:17,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3504. [2024-11-18 16:18:17,259 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) [2024-11-18 16:18:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 4336 transitions. [2024-11-18 16:18:17,274 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 4336 transitions. Word has length 77 [2024-11-18 16:18:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:17,274 INFO L471 AbstractCegarLoop]: Abstraction has 3504 states and 4336 transitions. [2024-11-18 16:18:17,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-18 16:18:17,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 4336 transitions. [2024-11-18 16:18:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:17,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:17,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:17,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:18:17,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:17,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash -838718193, now seen corresponding path program 1 times [2024-11-18 16:18:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163904466] [2024-11-18 16:18:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:17,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:17,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163904466] [2024-11-18 16:18:17,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163904466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:17,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:17,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:17,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094861412] [2024-11-18 16:18:17,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:17,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:17,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:17,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:17,353 INFO L87 Difference]: Start difference. First operand 3504 states and 4336 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:17,912 INFO L93 Difference]: Finished difference Result 3820 states and 4812 transitions. [2024-11-18 16:18:17,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:17,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:17,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:17,927 INFO L225 Difference]: With dead ends: 3820 [2024-11-18 16:18:17,927 INFO L226 Difference]: Without dead ends: 3668 [2024-11-18 16:18:17,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:17,929 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 571 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:17,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 872 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:17,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2024-11-18 16:18:18,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 3655. [2024-11-18 16:18:18,152 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, (537), 429 states have call predecessors, (537), 389 states have call successors, (537) [2024-11-18 16:18:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 4562 transitions. [2024-11-18 16:18:18,166 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 4562 transitions. Word has length 80 [2024-11-18 16:18:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:18,169 INFO L471 AbstractCegarLoop]: Abstraction has 3655 states and 4562 transitions. [2024-11-18 16:18:18,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 4562 transitions. [2024-11-18 16:18:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:18,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:18,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:18,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:18:18,172 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2080158709, now seen corresponding path program 1 times [2024-11-18 16:18:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63073217] [2024-11-18 16:18:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:18,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:18,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63073217] [2024-11-18 16:18:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63073217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:18,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:18,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:18,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65008402] [2024-11-18 16:18:18,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:18,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:18,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:18,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:18,285 INFO L87 Difference]: Start difference. First operand 3655 states and 4562 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:19,168 INFO L93 Difference]: Finished difference Result 4145 states and 5301 transitions. [2024-11-18 16:18:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:19,185 INFO L225 Difference]: With dead ends: 4145 [2024-11-18 16:18:19,186 INFO L226 Difference]: Without dead ends: 3842 [2024-11-18 16:18:19,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:19,189 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 562 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:19,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1461 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-11-18 16:18:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3797. [2024-11-18 16:18:19,552 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, (552), 442 states have call predecessors, (552), 401 states have call successors, (552) [2024-11-18 16:18:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 4772 transitions. [2024-11-18 16:18:19,562 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 4772 transitions. Word has length 80 [2024-11-18 16:18:19,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:19,563 INFO L471 AbstractCegarLoop]: Abstraction has 3797 states and 4772 transitions. [2024-11-18 16:18:19,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 4772 transitions. [2024-11-18 16:18:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:19,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:19,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:19,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:18:19,566 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:19,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:19,567 INFO L85 PathProgramCache]: Analyzing trace with hash 528628749, now seen corresponding path program 1 times [2024-11-18 16:18:19,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:19,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020409293] [2024-11-18 16:18:19,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:19,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:19,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:19,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020409293] [2024-11-18 16:18:19,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020409293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:19,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:19,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568235703] [2024-11-18 16:18:19,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:19,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:19,633 INFO L87 Difference]: Start difference. First operand 3797 states and 4772 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:20,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:20,369 INFO L93 Difference]: Finished difference Result 4587 states and 5962 transitions. [2024-11-18 16:18:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:20,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:20,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:20,385 INFO L225 Difference]: With dead ends: 4587 [2024-11-18 16:18:20,385 INFO L226 Difference]: Without dead ends: 4142 [2024-11-18 16:18:20,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:20,389 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 557 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:20,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1445 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2024-11-18 16:18:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 4094. [2024-11-18 16:18:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 3255 states have (on average 1.2906298003072196) internal successors, (4201), 3303 states have internal predecessors, (4201), 428 states have call successors, (428), 332 states have call predecessors, (428), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5217 transitions. [2024-11-18 16:18:20,698 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5217 transitions. Word has length 80 [2024-11-18 16:18:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:20,698 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 5217 transitions. [2024-11-18 16:18:20,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5217 transitions. [2024-11-18 16:18:20,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:20,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:20,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:20,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:18:20,702 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:20,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:20,702 INFO L85 PathProgramCache]: Analyzing trace with hash 474235851, now seen corresponding path program 1 times [2024-11-18 16:18:20,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:20,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136146311] [2024-11-18 16:18:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:20,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:20,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:20,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136146311] [2024-11-18 16:18:20,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136146311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:20,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:20,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476506223] [2024-11-18 16:18:20,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:20,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:20,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:20,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:20,782 INFO L87 Difference]: Start difference. First operand 4094 states and 5217 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:21,264 INFO L93 Difference]: Finished difference Result 4902 states and 6450 transitions. [2024-11-18 16:18:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:21,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:21,286 INFO L225 Difference]: With dead ends: 4902 [2024-11-18 16:18:21,286 INFO L226 Difference]: Without dead ends: 4160 [2024-11-18 16:18:21,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:21,291 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 464 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:21,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 626 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2024-11-18 16:18:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 4094. [2024-11-18 16:18:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 3255 states have (on average 1.2890937019969277) internal successors, (4196), 3303 states have internal predecessors, (4196), 428 states have call successors, (428), 332 states have call predecessors, (428), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5212 transitions. [2024-11-18 16:18:21,599 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5212 transitions. Word has length 80 [2024-11-18 16:18:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:21,600 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 5212 transitions. [2024-11-18 16:18:21,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5212 transitions. [2024-11-18 16:18:21,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:21,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:21,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:21,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:18:21,602 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:21,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash 56839245, now seen corresponding path program 1 times [2024-11-18 16:18:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57688478] [2024-11-18 16:18:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:21,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:21,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57688478] [2024-11-18 16:18:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57688478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:21,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391046609] [2024-11-18 16:18:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:21,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:21,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:21,662 INFO L87 Difference]: Start difference. First operand 4094 states and 5212 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:22,269 INFO L93 Difference]: Finished difference Result 4891 states and 6418 transitions. [2024-11-18 16:18:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:22,284 INFO L225 Difference]: With dead ends: 4891 [2024-11-18 16:18:22,284 INFO L226 Difference]: Without dead ends: 4149 [2024-11-18 16:18:22,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:22,289 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 459 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:22,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 616 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:22,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-18 16:18:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4094. [2024-11-18 16:18:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 3255 states have (on average 1.2875576036866359) internal successors, (4191), 3303 states have internal predecessors, (4191), 428 states have call successors, (428), 332 states have call predecessors, (428), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5207 transitions. [2024-11-18 16:18:22,817 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5207 transitions. Word has length 80 [2024-11-18 16:18:22,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:22,817 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 5207 transitions. [2024-11-18 16:18:22,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5207 transitions. [2024-11-18 16:18:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:22,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:22,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:22,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:18:22,821 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:22,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:22,822 INFO L85 PathProgramCache]: Analyzing trace with hash 736111499, now seen corresponding path program 1 times [2024-11-18 16:18:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:22,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976498095] [2024-11-18 16:18:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:22,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:22,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976498095] [2024-11-18 16:18:22,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976498095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:22,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:22,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:22,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26203656] [2024-11-18 16:18:22,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:22,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:22,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:22,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:22,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:22,904 INFO L87 Difference]: Start difference. First operand 4094 states and 5207 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:23,780 INFO L93 Difference]: Finished difference Result 5558 states and 7396 transitions. [2024-11-18 16:18:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:23,795 INFO L225 Difference]: With dead ends: 5558 [2024-11-18 16:18:23,795 INFO L226 Difference]: Without dead ends: 4816 [2024-11-18 16:18:23,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:23,798 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 609 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:23,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1378 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2024-11-18 16:18:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4651. [2024-11-18 16:18:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4651 states, 3730 states have (on average 1.3091152815013405) internal successors, (4883), 3792 states have internal predecessors, (4883), 472 states have call successors, (472), 356 states have call predecessors, (472), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-18 16:18:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 6035 transitions. [2024-11-18 16:18:24,115 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 6035 transitions. Word has length 80 [2024-11-18 16:18:24,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:24,115 INFO L471 AbstractCegarLoop]: Abstraction has 4651 states and 6035 transitions. [2024-11-18 16:18:24,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:24,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 6035 transitions. [2024-11-18 16:18:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:24,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:24,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:24,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:18:24,118 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:24,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1597281139, now seen corresponding path program 1 times [2024-11-18 16:18:24,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:24,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288814519] [2024-11-18 16:18:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:24,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:24,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:24,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288814519] [2024-11-18 16:18:24,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288814519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:24,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:24,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:24,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754601725] [2024-11-18 16:18:24,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:24,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:24,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:24,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:24,178 INFO L87 Difference]: Start difference. First operand 4651 states and 6035 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:24,966 INFO L93 Difference]: Finished difference Result 7209 states and 9894 transitions. [2024-11-18 16:18:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:24,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:24,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:24,986 INFO L225 Difference]: With dead ends: 7209 [2024-11-18 16:18:24,986 INFO L226 Difference]: Without dead ends: 5910 [2024-11-18 16:18:24,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:24,991 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 562 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:24,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1011 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:24,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2024-11-18 16:18:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5811. [2024-11-18 16:18:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5811 states, 4712 states have (on average 1.3389219015280136) internal successors, (6309), 4820 states have internal predecessors, (6309), 556 states have call successors, (556), 404 states have call predecessors, (556), 541 states have return successors, (956), 608 states have call predecessors, (956), 553 states have call successors, (956) [2024-11-18 16:18:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5811 states to 5811 states and 7821 transitions. [2024-11-18 16:18:25,413 INFO L78 Accepts]: Start accepts. Automaton has 5811 states and 7821 transitions. Word has length 80 [2024-11-18 16:18:25,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:25,413 INFO L471 AbstractCegarLoop]: Abstraction has 5811 states and 7821 transitions. [2024-11-18 16:18:25,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5811 states and 7821 transitions. [2024-11-18 16:18:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:25,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:25,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:25,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:18:25,417 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:25,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1036581361, now seen corresponding path program 1 times [2024-11-18 16:18:25,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:25,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507843927] [2024-11-18 16:18:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:25,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:25,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507843927] [2024-11-18 16:18:25,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507843927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:25,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:25,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:25,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369502282] [2024-11-18 16:18:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:25,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:25,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:25,463 INFO L87 Difference]: Start difference. First operand 5811 states and 7821 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:25,856 INFO L93 Difference]: Finished difference Result 8320 states and 11685 transitions. [2024-11-18 16:18:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:25,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:25,877 INFO L225 Difference]: With dead ends: 8320 [2024-11-18 16:18:25,877 INFO L226 Difference]: Without dead ends: 5862 [2024-11-18 16:18:25,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:25,885 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:25,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5862 states. [2024-11-18 16:18:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5862 to 5862. [2024-11-18 16:18:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 4763 states have (on average 1.3352928826369934) internal successors, (6360), 4871 states have internal predecessors, (6360), 556 states have call successors, (556), 404 states have call predecessors, (556), 541 states have return successors, (956), 608 states have call predecessors, (956), 553 states have call successors, (956) [2024-11-18 16:18:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 7872 transitions. [2024-11-18 16:18:26,291 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 7872 transitions. Word has length 80 [2024-11-18 16:18:26,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:26,291 INFO L471 AbstractCegarLoop]: Abstraction has 5862 states and 7872 transitions. [2024-11-18 16:18:26,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:26,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 7872 transitions. [2024-11-18 16:18:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:26,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:26,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:26,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:18:26,298 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:26,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:26,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1517661619, now seen corresponding path program 1 times [2024-11-18 16:18:26,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:26,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375846454] [2024-11-18 16:18:26,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:26,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:26,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375846454] [2024-11-18 16:18:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375846454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:26,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:26,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919118816] [2024-11-18 16:18:26,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:26,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:26,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:26,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:26,336 INFO L87 Difference]: Start difference. First operand 5862 states and 7872 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:27,289 INFO L93 Difference]: Finished difference Result 10794 states and 15325 transitions. [2024-11-18 16:18:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:27,317 INFO L225 Difference]: With dead ends: 10794 [2024-11-18 16:18:27,317 INFO L226 Difference]: Without dead ends: 8285 [2024-11-18 16:18:27,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:27,327 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 547 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:27,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1050 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8285 states. [2024-11-18 16:18:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8285 to 8247. [2024-11-18 16:18:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8247 states, 6808 states have (on average 1.3675088131609872) internal successors, (9310), 6982 states have internal predecessors, (9310), 728 states have call successors, (728), 506 states have call predecessors, (728), 709 states have return successors, (1369), 780 states have call predecessors, (1369), 725 states have call successors, (1369) [2024-11-18 16:18:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8247 states to 8247 states and 11407 transitions. [2024-11-18 16:18:27,898 INFO L78 Accepts]: Start accepts. Automaton has 8247 states and 11407 transitions. Word has length 80 [2024-11-18 16:18:27,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:27,898 INFO L471 AbstractCegarLoop]: Abstraction has 8247 states and 11407 transitions. [2024-11-18 16:18:27,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8247 states and 11407 transitions. [2024-11-18 16:18:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:27,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:27,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:27,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:18:27,902 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:27,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -84826900, now seen corresponding path program 1 times [2024-11-18 16:18:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:27,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573237009] [2024-11-18 16:18:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:27,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:27,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573237009] [2024-11-18 16:18:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573237009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:27,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:27,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705622158] [2024-11-18 16:18:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:27,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:27,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:27,975 INFO L87 Difference]: Start difference. First operand 8247 states and 11407 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:28,450 INFO L93 Difference]: Finished difference Result 13192 states and 18927 transitions. [2024-11-18 16:18:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:28,489 INFO L225 Difference]: With dead ends: 13192 [2024-11-18 16:18:28,489 INFO L226 Difference]: Without dead ends: 8298 [2024-11-18 16:18:28,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:28,506 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:28,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8298 states. [2024-11-18 16:18:29,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8298 to 8298. [2024-11-18 16:18:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 6859 states have (on average 1.3622977110365944) internal successors, (9344), 7033 states have internal predecessors, (9344), 728 states have call successors, (728), 506 states have call predecessors, (728), 709 states have return successors, (1369), 780 states have call predecessors, (1369), 725 states have call successors, (1369) [2024-11-18 16:18:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 11441 transitions. [2024-11-18 16:18:29,110 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 11441 transitions. Word has length 80 [2024-11-18 16:18:29,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:29,110 INFO L471 AbstractCegarLoop]: Abstraction has 8298 states and 11441 transitions. [2024-11-18 16:18:29,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 11441 transitions. [2024-11-18 16:18:29,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:29,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:29,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:29,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:18:29,114 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:29,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2134214742, now seen corresponding path program 1 times [2024-11-18 16:18:29,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:29,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686776205] [2024-11-18 16:18:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:29,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:29,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686776205] [2024-11-18 16:18:29,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686776205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:29,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:29,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:29,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246557173] [2024-11-18 16:18:29,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:29,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:29,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:29,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:29,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:29,157 INFO L87 Difference]: Start difference. First operand 8298 states and 11441 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:29,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:29,654 INFO L93 Difference]: Finished difference Result 13345 states and 19063 transitions. [2024-11-18 16:18:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:29,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:29,686 INFO L225 Difference]: With dead ends: 13345 [2024-11-18 16:18:29,686 INFO L226 Difference]: Without dead ends: 8400 [2024-11-18 16:18:29,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:29,701 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:29,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2024-11-18 16:18:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 8400. [2024-11-18 16:18:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 6961 states have (on average 1.3569889383709237) internal successors, (9446), 7135 states have internal predecessors, (9446), 728 states have call successors, (728), 506 states have call predecessors, (728), 709 states have return successors, (1369), 780 states have call predecessors, (1369), 725 states have call successors, (1369) [2024-11-18 16:18:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 11543 transitions. [2024-11-18 16:18:30,309 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 11543 transitions. Word has length 80 [2024-11-18 16:18:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:30,310 INFO L471 AbstractCegarLoop]: Abstraction has 8400 states and 11543 transitions. [2024-11-18 16:18:30,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 11543 transitions. [2024-11-18 16:18:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:30,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:30,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:30,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:18:30,315 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:30,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1131393256, now seen corresponding path program 1 times [2024-11-18 16:18:30,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:30,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947447435] [2024-11-18 16:18:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:30,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:30,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947447435] [2024-11-18 16:18:30,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947447435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:30,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:30,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143872778] [2024-11-18 16:18:30,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:30,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:30,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:30,360 INFO L87 Difference]: Start difference. First operand 8400 states and 11543 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:31,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:31,159 INFO L93 Difference]: Finished difference Result 18311 states and 26256 transitions. [2024-11-18 16:18:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:31,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:31,209 INFO L225 Difference]: With dead ends: 18311 [2024-11-18 16:18:31,209 INFO L226 Difference]: Without dead ends: 13264 [2024-11-18 16:18:31,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:31,227 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 559 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:31,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1050 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13264 states. [2024-11-18 16:18:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13264 to 13192. [2024-11-18 16:18:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13192 states, 11098 states have (on average 1.3793476302036403) internal successors, (15308), 11404 states have internal predecessors, (15308), 1051 states have call successors, (1051), 706 states have call predecessors, (1051), 1041 states have return successors, (2174), 1103 states have call predecessors, (2174), 1048 states have call successors, (2174) [2024-11-18 16:18:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13192 states to 13192 states and 18533 transitions. [2024-11-18 16:18:32,346 INFO L78 Accepts]: Start accepts. Automaton has 13192 states and 18533 transitions. Word has length 80 [2024-11-18 16:18:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:32,347 INFO L471 AbstractCegarLoop]: Abstraction has 13192 states and 18533 transitions. [2024-11-18 16:18:32,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 13192 states and 18533 transitions. [2024-11-18 16:18:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:32,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:32,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:32,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:18:32,351 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:32,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash -633423353, now seen corresponding path program 1 times [2024-11-18 16:18:32,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:32,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209856619] [2024-11-18 16:18:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:32,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:32,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209856619] [2024-11-18 16:18:32,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209856619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:32,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:32,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:32,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571871868] [2024-11-18 16:18:32,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:32,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:32,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:32,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:32,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:32,398 INFO L87 Difference]: Start difference. First operand 13192 states and 18533 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:33,169 INFO L93 Difference]: Finished difference Result 23133 states and 33366 transitions. [2024-11-18 16:18:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:33,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:33,220 INFO L225 Difference]: With dead ends: 23133 [2024-11-18 16:18:33,220 INFO L226 Difference]: Without dead ends: 13294 [2024-11-18 16:18:33,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:33,246 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:33,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:33,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13294 states. [2024-11-18 16:18:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13294 to 13294. [2024-11-18 16:18:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 11200 states have (on average 1.3728571428571428) internal successors, (15376), 11506 states have internal predecessors, (15376), 1051 states have call successors, (1051), 706 states have call predecessors, (1051), 1041 states have return successors, (2174), 1103 states have call predecessors, (2174), 1048 states have call successors, (2174) [2024-11-18 16:18:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 18601 transitions. [2024-11-18 16:18:34,058 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 18601 transitions. Word has length 80 [2024-11-18 16:18:34,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:34,058 INFO L471 AbstractCegarLoop]: Abstraction has 13294 states and 18601 transitions. [2024-11-18 16:18:34,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 18601 transitions. [2024-11-18 16:18:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:34,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:34,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:34,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:18:34,062 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:34,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash -358663739, now seen corresponding path program 1 times [2024-11-18 16:18:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:34,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566039059] [2024-11-18 16:18:34,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:34,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566039059] [2024-11-18 16:18:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566039059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:34,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:34,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946733468] [2024-11-18 16:18:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:34,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:34,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:34,129 INFO L87 Difference]: Start difference. First operand 13294 states and 18601 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:35,125 INFO L93 Difference]: Finished difference Result 14854 states and 20855 transitions. [2024-11-18 16:18:35,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:35,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:35,158 INFO L225 Difference]: With dead ends: 14854 [2024-11-18 16:18:35,159 INFO L226 Difference]: Without dead ends: 9284 [2024-11-18 16:18:35,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:35,173 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 549 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:35,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1094 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9284 states. [2024-11-18 16:18:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9284 to 8932. [2024-11-18 16:18:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8932 states, 7462 states have (on average 1.3387831680514608) internal successors, (9990), 7584 states have internal predecessors, (9990), 777 states have call successors, (777), 540 states have call predecessors, (777), 691 states have return successors, (1156), 821 states have call predecessors, (1156), 774 states have call successors, (1156) [2024-11-18 16:18:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8932 states to 8932 states and 11923 transitions. [2024-11-18 16:18:35,794 INFO L78 Accepts]: Start accepts. Automaton has 8932 states and 11923 transitions. Word has length 80 [2024-11-18 16:18:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:35,795 INFO L471 AbstractCegarLoop]: Abstraction has 8932 states and 11923 transitions. [2024-11-18 16:18:35,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8932 states and 11923 transitions. [2024-11-18 16:18:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:35,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:35,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:35,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:18:35,798 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:35,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:35,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1564564295, now seen corresponding path program 1 times [2024-11-18 16:18:35,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:35,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207524748] [2024-11-18 16:18:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:35,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:35,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207524748] [2024-11-18 16:18:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207524748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:35,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:35,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408119220] [2024-11-18 16:18:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:35,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:35,872 INFO L87 Difference]: Start difference. First operand 8932 states and 11923 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:36,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:36,716 INFO L93 Difference]: Finished difference Result 10292 states and 13889 transitions. [2024-11-18 16:18:36,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:36,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:36,740 INFO L225 Difference]: With dead ends: 10292 [2024-11-18 16:18:36,741 INFO L226 Difference]: Without dead ends: 6815 [2024-11-18 16:18:36,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:36,750 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 541 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:36,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1084 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2024-11-18 16:18:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6663. [2024-11-18 16:18:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 5503 states have (on average 1.3169180447028894) internal successors, (7247), 5569 states have internal predecessors, (7247), 618 states have call successors, (618), 445 states have call predecessors, (618), 540 states have return successors, (817), 658 states have call predecessors, (817), 615 states have call successors, (817) [2024-11-18 16:18:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8682 transitions. [2024-11-18 16:18:37,207 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8682 transitions. Word has length 80 [2024-11-18 16:18:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:37,208 INFO L471 AbstractCegarLoop]: Abstraction has 6663 states and 8682 transitions. [2024-11-18 16:18:37,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8682 transitions. [2024-11-18 16:18:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:37,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:37,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:37,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 16:18:37,210 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:37,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:37,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1626603909, now seen corresponding path program 1 times [2024-11-18 16:18:37,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:37,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746985636] [2024-11-18 16:18:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:37,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:37,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746985636] [2024-11-18 16:18:37,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746985636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:37,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:37,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:37,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780968268] [2024-11-18 16:18:37,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:37,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:37,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:37,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:37,266 INFO L87 Difference]: Start difference. First operand 6663 states and 8682 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:38,093 INFO L93 Difference]: Finished difference Result 9972 states and 13326 transitions. [2024-11-18 16:18:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:38,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:38,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:38,118 INFO L225 Difference]: With dead ends: 9972 [2024-11-18 16:18:38,118 INFO L226 Difference]: Without dead ends: 6663 [2024-11-18 16:18:38,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:38,126 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 451 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:38,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 593 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2024-11-18 16:18:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6663. [2024-11-18 16:18:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 5503 states have (on average 1.3103761584590223) internal successors, (7211), 5569 states have internal predecessors, (7211), 618 states have call successors, (618), 445 states have call predecessors, (618), 540 states have return successors, (817), 658 states have call predecessors, (817), 615 states have call successors, (817) [2024-11-18 16:18:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8646 transitions. [2024-11-18 16:18:38,888 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8646 transitions. Word has length 80 [2024-11-18 16:18:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:38,888 INFO L471 AbstractCegarLoop]: Abstraction has 6663 states and 8646 transitions. [2024-11-18 16:18:38,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8646 transitions. [2024-11-18 16:18:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:38,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:38,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:38,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 16:18:38,891 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:38,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1767152519, now seen corresponding path program 1 times [2024-11-18 16:18:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601173623] [2024-11-18 16:18:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:38,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:38,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601173623] [2024-11-18 16:18:38,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601173623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:38,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:38,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:38,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29101206] [2024-11-18 16:18:38,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:38,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:38,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:38,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:38,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:38,949 INFO L87 Difference]: Start difference. First operand 6663 states and 8646 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:39,692 INFO L93 Difference]: Finished difference Result 10812 states and 14396 transitions. [2024-11-18 16:18:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:39,716 INFO L225 Difference]: With dead ends: 10812 [2024-11-18 16:18:39,716 INFO L226 Difference]: Without dead ends: 7502 [2024-11-18 16:18:39,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:39,726 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 519 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:39,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 592 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2024-11-18 16:18:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 7104. [2024-11-18 16:18:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 5910 states have (on average 1.2961082910321489) internal successors, (7660), 5976 states have internal predecessors, (7660), 629 states have call successors, (629), 468 states have call predecessors, (629), 563 states have return successors, (851), 669 states have call predecessors, (851), 626 states have call successors, (851) [2024-11-18 16:18:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 9140 transitions. [2024-11-18 16:18:40,297 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 9140 transitions. Word has length 80 [2024-11-18 16:18:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:40,297 INFO L471 AbstractCegarLoop]: Abstraction has 7104 states and 9140 transitions. [2024-11-18 16:18:40,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 9140 transitions. [2024-11-18 16:18:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:40,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:40,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:40,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 16:18:40,301 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:40,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:40,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1633139013, now seen corresponding path program 1 times [2024-11-18 16:18:40,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518591216] [2024-11-18 16:18:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:40,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:40,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518591216] [2024-11-18 16:18:40,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518591216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:40,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:40,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834936294] [2024-11-18 16:18:40,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:40,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:40,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:40,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:40,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:40,374 INFO L87 Difference]: Start difference. First operand 7104 states and 9140 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:41,221 INFO L93 Difference]: Finished difference Result 10108 states and 13246 transitions. [2024-11-18 16:18:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:41,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:41,241 INFO L225 Difference]: With dead ends: 10108 [2024-11-18 16:18:41,242 INFO L226 Difference]: Without dead ends: 7480 [2024-11-18 16:18:41,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:41,248 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 534 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:41,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1006 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:41,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2024-11-18 16:18:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7064. [2024-11-18 16:18:41,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7064 states, 5882 states have (on average 1.2934376062563753) internal successors, (7608), 5936 states have internal predecessors, (7608), 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) [2024-11-18 16:18:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7064 states to 7064 states and 9054 transitions. [2024-11-18 16:18:41,729 INFO L78 Accepts]: Start accepts. Automaton has 7064 states and 9054 transitions. Word has length 80 [2024-11-18 16:18:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:41,729 INFO L471 AbstractCegarLoop]: Abstraction has 7064 states and 9054 transitions. [2024-11-18 16:18:41,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7064 states and 9054 transitions. [2024-11-18 16:18:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:41,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:41,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:41,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 16:18:41,732 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:41,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash -172299321, now seen corresponding path program 1 times [2024-11-18 16:18:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395421227] [2024-11-18 16:18:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:41,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:41,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395421227] [2024-11-18 16:18:41,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395421227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:41,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:41,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:41,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996069273] [2024-11-18 16:18:41,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:41,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:41,806 INFO L87 Difference]: Start difference. First operand 7064 states and 9054 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:42,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:42,830 INFO L93 Difference]: Finished difference Result 13704 states and 17830 transitions. [2024-11-18 16:18:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:42,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 [2024-11-18 16:18:42,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:42,864 INFO L225 Difference]: With dead ends: 13704 [2024-11-18 16:18:42,864 INFO L226 Difference]: Without dead ends: 9994 [2024-11-18 16:18:42,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:42,876 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 527 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:42,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1006 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2024-11-18 16:18:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 9438. [2024-11-18 16:18:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9438 states, 7966 states have (on average 1.2955059000753202) internal successors, (10320), 8044 states have internal predecessors, (10320), 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) [2024-11-18 16:18:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9438 states to 9438 states and 12146 transitions. [2024-11-18 16:18:43,557 INFO L78 Accepts]: Start accepts. Automaton has 9438 states and 12146 transitions. Word has length 80 [2024-11-18 16:18:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:43,558 INFO L471 AbstractCegarLoop]: Abstraction has 9438 states and 12146 transitions. [2024-11-18 16:18:43,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9438 states and 12146 transitions. [2024-11-18 16:18:43,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 16:18:43,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:43,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:43,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 16:18:43,561 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:43,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:43,561 INFO L85 PathProgramCache]: Analyzing trace with hash 46555397, now seen corresponding path program 1 times [2024-11-18 16:18:43,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:43,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199528762] [2024-11-18 16:18:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:43,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:43,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:43,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199528762] [2024-11-18 16:18:43,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199528762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:43,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:43,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750436237] [2024-11-18 16:18:43,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:43,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:43,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:43,584 INFO L87 Difference]: Start difference. First operand 9438 states and 12146 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 16:18:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:44,302 INFO L93 Difference]: Finished difference Result 17410 states and 22762 transitions. [2024-11-18 16:18:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:44,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 [2024-11-18 16:18:44,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:44,333 INFO L225 Difference]: With dead ends: 17410 [2024-11-18 16:18:44,333 INFO L226 Difference]: Without dead ends: 11326 [2024-11-18 16:18:44,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:44,346 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 320 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:44,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 574 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2024-11-18 16:18:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 11302. [2024-11-18 16:18:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11302 states, 9610 states have (on average 1.2905306971904267) internal successors, (12402), 9716 states have internal predecessors, (12402), 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) [2024-11-18 16:18:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11302 states to 11302 states and 14475 transitions. [2024-11-18 16:18:45,085 INFO L78 Accepts]: Start accepts. Automaton has 11302 states and 14475 transitions. Word has length 80 [2024-11-18 16:18:45,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:45,085 INFO L471 AbstractCegarLoop]: Abstraction has 11302 states and 14475 transitions. [2024-11-18 16:18:45,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 16:18:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 11302 states and 14475 transitions. [2024-11-18 16:18:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 16:18:45,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:45,088 INFO L215 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] [2024-11-18 16:18:45,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 16:18:45,089 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:45,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1894614631, now seen corresponding path program 1 times [2024-11-18 16:18:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:45,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048754759] [2024-11-18 16:18:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 16:18:45,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:45,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048754759] [2024-11-18 16:18:45,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048754759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:45,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:45,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:45,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330536672] [2024-11-18 16:18:45,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:45,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:45,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:45,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:45,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:45,147 INFO L87 Difference]: Start difference. First operand 11302 states and 14475 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 16:18:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:46,782 INFO L93 Difference]: Finished difference Result 18154 states and 22872 transitions. [2024-11-18 16:18:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 16:18:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-18 16:18:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:46,829 INFO L225 Difference]: With dead ends: 18154 [2024-11-18 16:18:46,829 INFO L226 Difference]: Without dead ends: 13531 [2024-11-18 16:18:46,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-18 16:18:46,843 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 584 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:46,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1182 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2024-11-18 16:18:47,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13274. [2024-11-18 16:18:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13274 states, 11130 states have (on average 1.2754716981132075) internal successors, (14196), 11272 states have internal predecessors, (14196), 1124 states have call successors, (1124), 846 states have call predecessors, (1124), 1018 states have return successors, (1514), 1165 states have call predecessors, (1514), 1121 states have call successors, (1514) [2024-11-18 16:18:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13274 states to 13274 states and 16834 transitions. [2024-11-18 16:18:47,925 INFO L78 Accepts]: Start accepts. Automaton has 13274 states and 16834 transitions. Word has length 84 [2024-11-18 16:18:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:47,925 INFO L471 AbstractCegarLoop]: Abstraction has 13274 states and 16834 transitions. [2024-11-18 16:18:47,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 16:18:47,926 INFO L276 IsEmpty]: Start isEmpty. Operand 13274 states and 16834 transitions. [2024-11-18 16:18:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:18:47,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:47,930 INFO L215 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] [2024-11-18 16:18:47,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 16:18:47,930 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:47,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2046170973, now seen corresponding path program 1 times [2024-11-18 16:18:47,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:47,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162402674] [2024-11-18 16:18:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 16:18:48,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:48,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162402674] [2024-11-18 16:18:48,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162402674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:48,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:48,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:18:48,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227248261] [2024-11-18 16:18:48,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:48,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:18:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:48,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:18:48,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:48,005 INFO L87 Difference]: Start difference. First operand 13274 states and 16834 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 16:18:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:49,452 INFO L93 Difference]: Finished difference Result 17298 states and 21717 transitions. [2024-11-18 16:18:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 16:18:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-18 16:18:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:49,494 INFO L225 Difference]: With dead ends: 17298 [2024-11-18 16:18:49,495 INFO L226 Difference]: Without dead ends: 12654 [2024-11-18 16:18:49,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-18 16:18:49,509 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1131 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:49,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1264 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:49,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12654 states. [2024-11-18 16:18:50,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12654 to 12373. [2024-11-18 16:18:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12373 states, 10435 states have (on average 1.275898418782942) internal successors, (13314), 10560 states have internal predecessors, (13314), 1028 states have call successors, (1028), 761 states have call predecessors, (1028), 908 states have return successors, (1302), 1061 states have call predecessors, (1302), 1025 states have call successors, (1302) [2024-11-18 16:18:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12373 states to 12373 states and 15644 transitions. [2024-11-18 16:18:50,460 INFO L78 Accepts]: Start accepts. Automaton has 12373 states and 15644 transitions. Word has length 93 [2024-11-18 16:18:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:50,460 INFO L471 AbstractCegarLoop]: Abstraction has 12373 states and 15644 transitions. [2024-11-18 16:18:50,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 16:18:50,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12373 states and 15644 transitions. [2024-11-18 16:18:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 16:18:50,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:50,469 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:50,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 16:18:50,470 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:50,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:50,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2047212106, now seen corresponding path program 1 times [2024-11-18 16:18:50,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:50,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455854961] [2024-11-18 16:18:50,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:50,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 16:18:50,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455854961] [2024-11-18 16:18:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455854961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:50,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:50,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956356214] [2024-11-18 16:18:50,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:50,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:50,547 INFO L87 Difference]: Start difference. First operand 12373 states and 15644 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:18:52,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:52,061 INFO L93 Difference]: Finished difference Result 28919 states and 37374 transitions. [2024-11-18 16:18:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 130 [2024-11-18 16:18:52,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:52,125 INFO L225 Difference]: With dead ends: 28919 [2024-11-18 16:18:52,125 INFO L226 Difference]: Without dead ends: 20973 [2024-11-18 16:18:52,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:52,142 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 475 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:52,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 693 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20973 states. [2024-11-18 16:18:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20973 to 20917. [2024-11-18 16:18:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20917 states, 17962 states have (on average 1.2770849571317224) internal successors, (22939), 18196 states have internal predecessors, (22939), 1561 states have call successors, (1561), 1121 states have call predecessors, (1561), 1392 states have return successors, (2226), 1613 states have call predecessors, (2226), 1558 states have call successors, (2226) [2024-11-18 16:18:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20917 states to 20917 states and 26726 transitions. [2024-11-18 16:18:53,706 INFO L78 Accepts]: Start accepts. Automaton has 20917 states and 26726 transitions. Word has length 130 [2024-11-18 16:18:53,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:53,707 INFO L471 AbstractCegarLoop]: Abstraction has 20917 states and 26726 transitions. [2024-11-18 16:18:53,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:18:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 20917 states and 26726 transitions. [2024-11-18 16:18:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 16:18:53,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:53,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:53,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 16:18:53,724 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:53,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:53,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1559165000, now seen corresponding path program 1 times [2024-11-18 16:18:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039260854] [2024-11-18 16:18:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:53,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 16:18:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039260854] [2024-11-18 16:18:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039260854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:53,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108730810] [2024-11-18 16:18:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:53,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:53,758 INFO L87 Difference]: Start difference. First operand 20917 states and 26726 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:55,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:55,062 INFO L93 Difference]: Finished difference Result 33675 states and 43265 transitions. [2024-11-18 16:18:55,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:55,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 130 [2024-11-18 16:18:55,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:55,121 INFO L225 Difference]: With dead ends: 33675 [2024-11-18 16:18:55,121 INFO L226 Difference]: Without dead ends: 17185 [2024-11-18 16:18:55,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:55,151 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 229 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:55,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17185 states. [2024-11-18 16:18:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17185 to 17185. [2024-11-18 16:18:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17185 states, 14699 states have (on average 1.2723994829580243) internal successors, (18703), 14900 states have internal predecessors, (18703), 1292 states have call successors, (1292), 941 states have call predecessors, (1292), 1192 states have return successors, (1834), 1353 states have call predecessors, (1834), 1289 states have call successors, (1834) [2024-11-18 16:18:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 21829 transitions. [2024-11-18 16:18:56,434 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 21829 transitions. Word has length 130 [2024-11-18 16:18:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:56,434 INFO L471 AbstractCegarLoop]: Abstraction has 17185 states and 21829 transitions. [2024-11-18 16:18:56,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 21829 transitions. [2024-11-18 16:18:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 16:18:56,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:56,446 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:56,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 16:18:56,447 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:56,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1344055089, now seen corresponding path program 1 times [2024-11-18 16:18:56,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:56,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996389046] [2024-11-18 16:18:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:56,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 16:18:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996389046] [2024-11-18 16:18:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996389046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:56,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:56,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255317127] [2024-11-18 16:18:56,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:56,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:56,513 INFO L87 Difference]: Start difference. First operand 17185 states and 21829 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:18:58,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:58,543 INFO L93 Difference]: Finished difference Result 44398 states and 57015 transitions. [2024-11-18 16:18:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:58,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 132 [2024-11-18 16:18:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:58,638 INFO L225 Difference]: With dead ends: 44398 [2024-11-18 16:18:58,638 INFO L226 Difference]: Without dead ends: 31640 [2024-11-18 16:18:58,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:58,669 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 459 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:58,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 665 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2024-11-18 16:19:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 31464. [2024-11-18 16:19:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31464 states, 27223 states have (on average 1.2681188700730999) internal successors, (34522), 27741 states have internal predecessors, (34522), 2049 states have call successors, (2049), 1473 states have call predecessors, (2049), 2190 states have return successors, (3562), 2263 states have call predecessors, (3562), 2046 states have call successors, (3562) [2024-11-18 16:19:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31464 states to 31464 states and 40133 transitions. [2024-11-18 16:19:00,813 INFO L78 Accepts]: Start accepts. Automaton has 31464 states and 40133 transitions. Word has length 132 [2024-11-18 16:19:00,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:00,814 INFO L471 AbstractCegarLoop]: Abstraction has 31464 states and 40133 transitions. [2024-11-18 16:19:00,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:00,814 INFO L276 IsEmpty]: Start isEmpty. Operand 31464 states and 40133 transitions. [2024-11-18 16:19:00,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 16:19:00,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:00,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:19:00,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 16:19:00,832 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:00,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash -706353809, now seen corresponding path program 1 times [2024-11-18 16:19:00,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:00,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504555604] [2024-11-18 16:19:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 16:19:00,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504555604] [2024-11-18 16:19:00,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504555604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:00,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:00,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:19:00,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823829283] [2024-11-18 16:19:00,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:00,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:19:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:00,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:19:00,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:00,855 INFO L87 Difference]: Start difference. First operand 31464 states and 40133 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:03,003 INFO L93 Difference]: Finished difference Result 58496 states and 74964 transitions. [2024-11-18 16:19:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:19:03,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 132 [2024-11-18 16:19:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:03,098 INFO L225 Difference]: With dead ends: 58496 [2024-11-18 16:19:03,099 INFO L226 Difference]: Without dead ends: 31457 [2024-11-18 16:19:03,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:03,138 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 227 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:19:03,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:19:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31457 states. [2024-11-18 16:19:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31457 to 31457. [2024-11-18 16:19:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31457 states, 27221 states have (on average 1.2680650968002645) internal successors, (34518), 27738 states have internal predecessors, (34518), 2044 states have call successors, (2044), 1473 states have call predecessors, (2044), 2190 states have return successors, (3552), 2255 states have call predecessors, (3552), 2041 states have call successors, (3552) [2024-11-18 16:19:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31457 states to 31457 states and 40114 transitions. [2024-11-18 16:19:05,653 INFO L78 Accepts]: Start accepts. Automaton has 31457 states and 40114 transitions. Word has length 132 [2024-11-18 16:19:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:05,653 INFO L471 AbstractCegarLoop]: Abstraction has 31457 states and 40114 transitions. [2024-11-18 16:19:05,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 31457 states and 40114 transitions. [2024-11-18 16:19:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 16:19:05,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:05,670 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:19:05,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 16:19:05,671 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:05,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1415654602, now seen corresponding path program 1 times [2024-11-18 16:19:05,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:05,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570932843] [2024-11-18 16:19:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 16:19:05,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:05,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570932843] [2024-11-18 16:19:05,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570932843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:05,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:05,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:19:05,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233492179] [2024-11-18 16:19:05,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:05,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:19:05,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:05,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:19:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:19:05,742 INFO L87 Difference]: Start difference. First operand 31457 states and 40114 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:09,548 INFO L93 Difference]: Finished difference Result 81831 states and 105202 transitions. [2024-11-18 16:19:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:19:09,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 134 [2024-11-18 16:19:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:09,721 INFO L225 Difference]: With dead ends: 81831 [2024-11-18 16:19:09,721 INFO L226 Difference]: Without dead ends: 54801 [2024-11-18 16:19:09,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:19:09,767 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 456 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:19:09,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 604 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:19:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54801 states. [2024-11-18 16:19:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54801 to 54005. [2024-11-18 16:19:14,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54005 states, 46600 states have (on average 1.2673175965665235) internal successors, (59057), 47694 states have internal predecessors, (59057), 3467 states have call successors, (3467), 2403 states have call predecessors, (3467), 3936 states have return successors, (6818), 3921 states have call predecessors, (6818), 3464 states have call successors, (6818) [2024-11-18 16:19:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54005 states to 54005 states and 69342 transitions. [2024-11-18 16:19:14,578 INFO L78 Accepts]: Start accepts. Automaton has 54005 states and 69342 transitions. Word has length 134 [2024-11-18 16:19:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:14,579 INFO L471 AbstractCegarLoop]: Abstraction has 54005 states and 69342 transitions. [2024-11-18 16:19:14,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 54005 states and 69342 transitions. [2024-11-18 16:19:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 16:19:14,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:14,605 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:19:14,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 16:19:14,605 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:14,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:14,605 INFO L85 PathProgramCache]: Analyzing trace with hash -553821000, now seen corresponding path program 1 times [2024-11-18 16:19:14,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:14,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61671416] [2024-11-18 16:19:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:14,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 16:19:14,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:14,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61671416] [2024-11-18 16:19:14,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61671416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:14,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:14,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:19:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928941536] [2024-11-18 16:19:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:14,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:19:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:14,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:19:14,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:14,640 INFO L87 Difference]: Start difference. First operand 54005 states and 69342 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:18,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:18,455 INFO L93 Difference]: Finished difference Result 93076 states and 119936 transitions. [2024-11-18 16:19:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:19:18,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 134 [2024-11-18 16:19:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:18,595 INFO L225 Difference]: With dead ends: 93076 [2024-11-18 16:19:18,595 INFO L226 Difference]: Without dead ends: 43498 [2024-11-18 16:19:18,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:18,655 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 225 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:19:18,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:19:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43498 states. [2024-11-18 16:19:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43498 to 43498. [2024-11-18 16:19:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43498 states, 37505 states have (on average 1.2687641647780297) internal successors, (47585), 38406 states have internal predecessors, (47585), 2753 states have call successors, (2753), 1938 states have call predecessors, (2753), 3238 states have return successors, (5544), 3163 states have call predecessors, (5544), 2750 states have call successors, (5544) [2024-11-18 16:19:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43498 states to 43498 states and 55882 transitions. [2024-11-18 16:19:22,627 INFO L78 Accepts]: Start accepts. Automaton has 43498 states and 55882 transitions. Word has length 134 [2024-11-18 16:19:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:22,628 INFO L471 AbstractCegarLoop]: Abstraction has 43498 states and 55882 transitions. [2024-11-18 16:19:22,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 43498 states and 55882 transitions. [2024-11-18 16:19:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 16:19:22,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:22,654 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:19:22,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 16:19:22,655 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:22,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:22,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1068874895, now seen corresponding path program 1 times [2024-11-18 16:19:22,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647534023] [2024-11-18 16:19:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat