./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-2.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-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c3aab1156afcb98b97b027e9b66004d54025f3b89e95d6d35dc2e84fdb640d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:18:08,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:18:08,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:18:08,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:18:08,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:18:08,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:18:08,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:18:08,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:18:08,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:18:08,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:18:08,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:18:08,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:18:08,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:18:08,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:18:08,862 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:18:08,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:18:08,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:18:08,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:18:08,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:18:08,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:18:08,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:18:08,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:18:08,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:18:08,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:18:08,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:18:08,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:18:08,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:18:08,867 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:18:08,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:18:08,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:18:08,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:18:08,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:18:08,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:18:08,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:18:08,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:18:08,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:18:08,869 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:18:08,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:18:08,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:18:08,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:18:08,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:18:08,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:18:08,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c3aab1156afcb98b97b027e9b66004d54025f3b89e95d6d35dc2e84fdb640d2 [2024-11-18 16:18:09,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:18:09,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:18:09,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:18:09,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:18:09,134 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:18:09,135 INFO L431 ainManager$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-2.c [2024-11-18 16:18:10,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:18:10,783 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:18:10,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-2.c [2024-11-18 16:18:10,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8b6da80/286508ea710746b5bf60cf3d33b11740/FLAG03a559af9 [2024-11-18 16:18:10,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8b6da80/286508ea710746b5bf60cf3d33b11740 [2024-11-18 16:18:10,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:18:10,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:18:10,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:18:10,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:18:10,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:18:10,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:10" (1/1) ... [2024-11-18 16:18:10,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296ac8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:10, skipping insertion in model container [2024-11-18 16:18:10,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:10" (1/1) ... [2024-11-18 16:18:10,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:18:11,030 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-2.c[914,927] [2024-11-18 16:18:11,083 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-2.c[7115,7128] [2024-11-18 16:18:11,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:18:11,139 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:18:11,150 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-2.c[914,927] [2024-11-18 16:18:11,177 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-2.c[7115,7128] [2024-11-18 16:18:11,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:18:11,268 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:18:11,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11 WrapperNode [2024-11-18 16:18:11,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:18:11,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:18:11,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:18:11,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:18:11,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,331 INFO L138 Inliner]: procedures = 59, calls = 66, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 528 [2024-11-18 16:18:11,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:18:11,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:18:11,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:18:11,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:18:11,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,364 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 16:18:11,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:18:11,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:18:11,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:18:11,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:18:11,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (1/1) ... [2024-11-18 16:18:11,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:18:11,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:18:11,435 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 16:18:11,450 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 16:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 16:18:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 16:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-18 16:18:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-18 16:18:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-18 16:18:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-18 16:18:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-18 16:18:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-18 16:18:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-18 16:18:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-18 16:18:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-18 16:18:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-18 16:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-18 16:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-18 16:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-18 16:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-18 16:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-18 16:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-18 16:18:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-18 16:18:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-18 16:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-18 16:18:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-18 16:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-18 16:18:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-18 16:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-18 16:18:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-18 16:18:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:18:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:18:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-18 16:18:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-18 16:18:11,603 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:18:11,605 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:18:12,193 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-18 16:18:12,195 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:18:12,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:18:12,216 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-18 16:18:12,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:12 BoogieIcfgContainer [2024-11-18 16:18:12,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:18:12,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:18:12,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:18:12,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:18:12,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:18:10" (1/3) ... [2024-11-18 16:18:12,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c1f0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:18:12, skipping insertion in model container [2024-11-18 16:18:12,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:11" (2/3) ... [2024-11-18 16:18:12,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c1f0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:18:12, skipping insertion in model container [2024-11-18 16:18:12,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:12" (3/3) ... [2024-11-18 16:18:12,226 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.03.cil-2.c [2024-11-18 16:18:12,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:18:12,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:18:12,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:18:12,346 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;@6e8b351f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:18:12,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:18:12,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 214 states have (on average 1.560747663551402) internal successors, (334), 220 states have internal predecessors, (334), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 16:18:12,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:12,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:12,371 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 16:18:12,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:12,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:12,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1308412367, now seen corresponding path program 1 times [2024-11-18 16:18:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:12,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775767062] [2024-11-18 16:18:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:12,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:12,954 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 16:18:12,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:12,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775767062] [2024-11-18 16:18:12,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775767062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:12,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:12,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838634931] [2024-11-18 16:18:12,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:12,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:12,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:12,992 INFO L87 Difference]: Start difference. First operand has 262 states, 214 states have (on average 1.560747663551402) internal successors, (334), 220 states have internal predecessors, (334), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) 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 16:18:13,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:13,594 INFO L93 Difference]: Finished difference Result 608 states and 922 transitions. [2024-11-18 16:18:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:13,617 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 16:18:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:13,673 INFO L225 Difference]: With dead ends: 608 [2024-11-18 16:18:13,677 INFO L226 Difference]: Without dead ends: 355 [2024-11-18 16:18:13,682 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 16:18:13,686 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 300 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:13,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 841 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:13,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-18 16:18:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 348. [2024-11-18 16:18:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 282 states have (on average 1.4432624113475176) internal successors, (407), 288 states have internal predecessors, (407), 42 states have call successors, (42), 21 states have call predecessors, (42), 22 states have return successors, (45), 41 states have call predecessors, (45), 40 states have call successors, (45) [2024-11-18 16:18:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 494 transitions. [2024-11-18 16:18:13,756 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 494 transitions. Word has length 65 [2024-11-18 16:18:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:13,756 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 494 transitions. [2024-11-18 16:18:13,757 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 16:18:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 494 transitions. [2024-11-18 16:18:13,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:13,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:13,760 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 16:18:13,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:18:13,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:13,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash -904626416, now seen corresponding path program 1 times [2024-11-18 16:18:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:13,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524495232] [2024-11-18 16:18:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:13,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:13,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524495232] [2024-11-18 16:18:13,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524495232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:13,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:13,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:13,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320214251] [2024-11-18 16:18:13,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:13,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:13,925 INFO L87 Difference]: Start difference. First operand 348 states and 494 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 16:18:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:14,499 INFO L93 Difference]: Finished difference Result 665 states and 925 transitions. [2024-11-18 16:18:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:14,500 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 16:18:14,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:14,507 INFO L225 Difference]: With dead ends: 665 [2024-11-18 16:18:14,508 INFO L226 Difference]: Without dead ends: 488 [2024-11-18 16:18:14,509 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 16:18:14,510 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 529 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:14,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1051 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:14,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-18 16:18:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 444. [2024-11-18 16:18:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 358 states have (on average 1.4273743016759777) internal successors, (511), 366 states have internal predecessors, (511), 53 states have call successors, (53), 28 states have call predecessors, (53), 31 states have return successors, (64), 53 states have call predecessors, (64), 51 states have call successors, (64) [2024-11-18 16:18:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 628 transitions. [2024-11-18 16:18:14,588 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 628 transitions. Word has length 65 [2024-11-18 16:18:14,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:14,589 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 628 transitions. [2024-11-18 16:18:14,589 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 16:18:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 628 transitions. [2024-11-18 16:18:14,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:14,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:14,597 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 16:18:14,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:18:14,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:14,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1361754770, now seen corresponding path program 1 times [2024-11-18 16:18:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:14,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840519240] [2024-11-18 16:18:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:14,753 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 16:18:14,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:14,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840519240] [2024-11-18 16:18:14,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840519240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:14,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:14,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:14,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880364780] [2024-11-18 16:18:14,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:14,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:14,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:14,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:14,759 INFO L87 Difference]: Start difference. First operand 444 states and 628 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 16:18:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:14,805 INFO L93 Difference]: Finished difference Result 716 states and 1001 transitions. [2024-11-18 16:18:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:14,806 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 16:18:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:14,813 INFO L225 Difference]: With dead ends: 716 [2024-11-18 16:18:14,814 INFO L226 Difference]: Without dead ends: 449 [2024-11-18 16:18:14,816 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 16:18:14,817 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 0 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1790 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 16:18:14,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1790 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-18 16:18:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-18 16:18:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 362 states have (on average 1.4171270718232045) internal successors, (513), 370 states have internal predecessors, (513), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (65), 54 states have call predecessors, (65), 51 states have call successors, (65) [2024-11-18 16:18:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 631 transitions. [2024-11-18 16:18:14,867 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 631 transitions. Word has length 65 [2024-11-18 16:18:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:14,868 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 631 transitions. [2024-11-18 16:18:14,868 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 16:18:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 631 transitions. [2024-11-18 16:18:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:14,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:14,872 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 16:18:14,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:18:14,873 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:14,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 332395472, now seen corresponding path program 1 times [2024-11-18 16:18:14,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:14,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915953953] [2024-11-18 16:18:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:14,991 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 16:18:14,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:14,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915953953] [2024-11-18 16:18:14,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915953953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:14,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:14,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:14,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735702661] [2024-11-18 16:18:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:14,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:14,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:14,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:14,997 INFO L87 Difference]: Start difference. First operand 449 states and 631 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 16:18:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:15,050 INFO L93 Difference]: Finished difference Result 736 states and 1019 transitions. [2024-11-18 16:18:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:15,050 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 16:18:15,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:15,053 INFO L225 Difference]: With dead ends: 736 [2024-11-18 16:18:15,054 INFO L226 Difference]: Without dead ends: 464 [2024-11-18 16:18:15,055 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 16:18:15,056 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 0 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1790 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 16:18:15,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1790 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-18 16:18:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-11-18 16:18:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 374 states have (on average 1.4037433155080214) internal successors, (525), 382 states have internal predecessors, (525), 53 states have call successors, (53), 28 states have call predecessors, (53), 35 states have return successors, (68), 57 states have call predecessors, (68), 51 states have call successors, (68) [2024-11-18 16:18:15,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 646 transitions. [2024-11-18 16:18:15,088 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 646 transitions. Word has length 65 [2024-11-18 16:18:15,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:15,090 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 646 transitions. [2024-11-18 16:18:15,093 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 16:18:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 646 transitions. [2024-11-18 16:18:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:15,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:15,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:18:15,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:18:15,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:15,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1718598866, now seen corresponding path program 1 times [2024-11-18 16:18:15,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:15,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207537756] [2024-11-18 16:18:15,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:15,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:15,345 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 16:18:15,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:15,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207537756] [2024-11-18 16:18:15,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207537756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:15,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:15,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307372426] [2024-11-18 16:18:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:15,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:15,350 INFO L87 Difference]: Start difference. First operand 464 states and 646 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 16:18:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:15,924 INFO L93 Difference]: Finished difference Result 835 states and 1127 transitions. [2024-11-18 16:18:15,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:18:15,924 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 16:18:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:15,927 INFO L225 Difference]: With dead ends: 835 [2024-11-18 16:18:15,929 INFO L226 Difference]: Without dead ends: 550 [2024-11-18 16:18:15,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:18:15,931 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 526 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:15,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 882 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-18 16:18:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 476. [2024-11-18 16:18:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 384 states have (on average 1.3932291666666667) internal successors, (535), 392 states have internal predecessors, (535), 54 states have call successors, (54), 29 states have call predecessors, (54), 36 states have return successors, (67), 58 states have call predecessors, (67), 52 states have call successors, (67) [2024-11-18 16:18:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 656 transitions. [2024-11-18 16:18:15,965 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 656 transitions. Word has length 65 [2024-11-18 16:18:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:15,966 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 656 transitions. [2024-11-18 16:18:15,967 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 16:18:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 656 transitions. [2024-11-18 16:18:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:18:15,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:15,971 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 16:18:15,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:18:15,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:15,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1584585360, now seen corresponding path program 1 times [2024-11-18 16:18:15,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194292682] [2024-11-18 16:18:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:16,033 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 16:18:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:16,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194292682] [2024-11-18 16:18:16,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194292682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:16,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:16,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:16,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177380180] [2024-11-18 16:18:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:16,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:16,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:16,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:16,035 INFO L87 Difference]: Start difference. First operand 476 states and 656 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 16:18:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:16,307 INFO L93 Difference]: Finished difference Result 1066 states and 1432 transitions. [2024-11-18 16:18:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:16,307 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 16:18:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:16,313 INFO L225 Difference]: With dead ends: 1066 [2024-11-18 16:18:16,313 INFO L226 Difference]: Without dead ends: 770 [2024-11-18 16:18:16,314 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 16:18:16,316 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 485 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:16,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 435 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:16,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-18 16:18:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 766. [2024-11-18 16:18:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 608 states have (on average 1.3519736842105263) internal successors, (822), 623 states have internal predecessors, (822), 89 states have call successors, (89), 51 states have call predecessors, (89), 67 states have return successors, (124), 98 states have call predecessors, (124), 87 states have call successors, (124) [2024-11-18 16:18:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1035 transitions. [2024-11-18 16:18:16,355 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1035 transitions. Word has length 65 [2024-11-18 16:18:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:16,355 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1035 transitions. [2024-11-18 16:18:16,356 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 16:18:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1035 transitions. [2024-11-18 16:18:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:18:16,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:16,358 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 16:18:16,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:18:16,358 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:16,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1734272765, now seen corresponding path program 1 times [2024-11-18 16:18:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:16,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841521341] [2024-11-18 16:18:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:16,391 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 16:18:16,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:16,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841521341] [2024-11-18 16:18:16,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841521341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:16,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:16,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:16,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754094126] [2024-11-18 16:18:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:16,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:16,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:16,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:16,394 INFO L87 Difference]: Start difference. First operand 766 states and 1035 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 16:18:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:16,455 INFO L93 Difference]: Finished difference Result 1877 states and 2494 transitions. [2024-11-18 16:18:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:16,455 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 16:18:16,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:16,461 INFO L225 Difference]: With dead ends: 1877 [2024-11-18 16:18:16,461 INFO L226 Difference]: Without dead ends: 1270 [2024-11-18 16:18:16,462 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 16:18:16,463 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 103 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 685 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 16:18:16,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 685 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-18 16:18:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1247. [2024-11-18 16:18:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 987 states have (on average 1.32016210739615) internal successors, (1303), 1005 states have internal predecessors, (1303), 134 states have call successors, (134), 95 states have call predecessors, (134), 124 states have return successors, (196), 153 states have call predecessors, (196), 132 states have call successors, (196) [2024-11-18 16:18:16,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1633 transitions. [2024-11-18 16:18:16,563 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1633 transitions. Word has length 66 [2024-11-18 16:18:16,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:16,564 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1633 transitions. [2024-11-18 16:18:16,564 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 16:18:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1633 transitions. [2024-11-18 16:18:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:18:16,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:16,568 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 16:18:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:18:16,570 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:16,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash -276033106, now seen corresponding path program 1 times [2024-11-18 16:18:16,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:16,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440820804] [2024-11-18 16:18:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:16,599 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 16:18:16,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440820804] [2024-11-18 16:18:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440820804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:16,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116095730] [2024-11-18 16:18:16,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:16,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:16,601 INFO L87 Difference]: Start difference. First operand 1247 states and 1633 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 16:18:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:16,721 INFO L93 Difference]: Finished difference Result 3275 states and 4250 transitions. [2024-11-18 16:18:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:16,721 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 16:18:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:16,733 INFO L225 Difference]: With dead ends: 3275 [2024-11-18 16:18:16,733 INFO L226 Difference]: Without dead ends: 2207 [2024-11-18 16:18:16,736 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 16:18:16,738 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 331 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 468 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 16:18:16,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 468 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:16,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2024-11-18 16:18:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2109. [2024-11-18 16:18:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 1653 states have (on average 1.2885662431941924) internal successors, (2130), 1681 states have internal predecessors, (2130), 232 states have call successors, (232), 179 states have call predecessors, (232), 222 states have return successors, (332), 255 states have call predecessors, (332), 230 states have call successors, (332) [2024-11-18 16:18:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2694 transitions. [2024-11-18 16:18:16,934 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2694 transitions. Word has length 66 [2024-11-18 16:18:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:16,934 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 2694 transitions. [2024-11-18 16:18:16,935 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 16:18:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2694 transitions. [2024-11-18 16:18:16,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 16:18:16,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:16,937 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 16:18:16,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:18:16,938 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:16,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash -968522334, now seen corresponding path program 1 times [2024-11-18 16:18:16,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:16,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441980785] [2024-11-18 16:18:16,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:16,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:16,977 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 16:18:16,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:16,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441980785] [2024-11-18 16:18:16,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441980785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:16,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:16,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282123330] [2024-11-18 16:18:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:16,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:16,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:16,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:16,981 INFO L87 Difference]: Start difference. First operand 2109 states and 2694 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 16:18:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:17,109 INFO L93 Difference]: Finished difference Result 4811 states and 6108 transitions. [2024-11-18 16:18:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:17,110 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 16:18:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:17,159 INFO L225 Difference]: With dead ends: 4811 [2024-11-18 16:18:17,159 INFO L226 Difference]: Without dead ends: 2881 [2024-11-18 16:18:17,163 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 16:18:17,165 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 331 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 483 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 16:18:17,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 483 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-18 16:18:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2841. [2024-11-18 16:18:17,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2221 states have (on average 1.2760018009905447) internal successors, (2834), 2257 states have internal predecessors, (2834), 312 states have call successors, (312), 249 states have call predecessors, (312), 306 states have return successors, (441), 341 states have call predecessors, (441), 310 states have call successors, (441) [2024-11-18 16:18:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3587 transitions. [2024-11-18 16:18:17,362 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3587 transitions. Word has length 72 [2024-11-18 16:18:17,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:17,363 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 3587 transitions. [2024-11-18 16:18:17,364 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 16:18:17,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3587 transitions. [2024-11-18 16:18:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 16:18:17,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:17,365 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 16:18:17,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:18:17,366 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:17,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:17,366 INFO L85 PathProgramCache]: Analyzing trace with hash -475694546, now seen corresponding path program 1 times [2024-11-18 16:18:17,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:17,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849950626] [2024-11-18 16:18:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:17,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:17,444 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 16:18:17,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:17,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849950626] [2024-11-18 16:18:17,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849950626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:17,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890172261] [2024-11-18 16:18:17,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:17,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:17,446 INFO L87 Difference]: Start difference. First operand 2841 states and 3587 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 16:18:17,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:17,809 INFO L93 Difference]: Finished difference Result 3372 states and 4242 transitions. [2024-11-18 16:18:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:17,810 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 16:18:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:17,829 INFO L225 Difference]: With dead ends: 3372 [2024-11-18 16:18:17,829 INFO L226 Difference]: Without dead ends: 3369 [2024-11-18 16:18:17,831 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 16:18:17,832 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 667 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:17,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 462 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:17,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2024-11-18 16:18:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3335. [2024-11-18 16:18:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 2606 states have (on average 1.2686108979278587) internal successors, (3306), 2647 states have internal predecessors, (3306), 362 states have call successors, (362), 293 states have call predecessors, (362), 365 states have return successors, (520), 401 states have call predecessors, (520), 361 states have call successors, (520) [2024-11-18 16:18:18,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4188 transitions. [2024-11-18 16:18:18,115 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4188 transitions. Word has length 73 [2024-11-18 16:18:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:18,115 INFO L471 AbstractCegarLoop]: Abstraction has 3335 states and 4188 transitions. [2024-11-18 16:18:18,115 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 16:18:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4188 transitions. [2024-11-18 16:18:18,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 16:18:18,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:18,118 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 16:18:18,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:18:18,118 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:18,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1862406292, now seen corresponding path program 1 times [2024-11-18 16:18:18,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:18,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656207857] [2024-11-18 16:18:18,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:18,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:18,241 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 16:18:18,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:18,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656207857] [2024-11-18 16:18:18,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656207857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:18:18,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856755642] [2024-11-18 16:18:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:18,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:18:18,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:18:18,245 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 16:18:18,247 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 16:18:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:18,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 16:18:18,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:18:18,650 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 16:18:18,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:18:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856755642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:18:18,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:18:18,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-18 16:18:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276205053] [2024-11-18 16:18:18,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:18:18,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:18:18,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:18:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:18,747 INFO L87 Difference]: Start difference. First operand 3335 states and 4188 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 16:18:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:19,458 INFO L93 Difference]: Finished difference Result 7216 states and 9042 transitions. [2024-11-18 16:18:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:18:19,458 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 16:18:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:19,485 INFO L225 Difference]: With dead ends: 7216 [2024-11-18 16:18:19,485 INFO L226 Difference]: Without dead ends: 7213 [2024-11-18 16:18:19,487 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 16:18:19,487 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 670 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:19,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 2071 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7213 states. [2024-11-18 16:18:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7213 to 5125. [2024-11-18 16:18:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 4010 states have (on average 1.2673316708229427) internal successors, (5082), 4073 states have internal predecessors, (5082), 546 states have call successors, (546), 451 states have call predecessors, (546), 567 states have return successors, (798), 607 states have call predecessors, (798), 545 states have call successors, (798) [2024-11-18 16:18:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6426 transitions. [2024-11-18 16:18:19,959 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6426 transitions. Word has length 74 [2024-11-18 16:18:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:19,959 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 6426 transitions. [2024-11-18 16:18:19,960 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 16:18:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6426 transitions. [2024-11-18 16:18:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 16:18:19,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:19,963 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 16:18:19,983 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 16:18:20,166 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 16:18:20,167 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:20,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1528425426, now seen corresponding path program 2 times [2024-11-18 16:18:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098235638] [2024-11-18 16:18:20,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 16:18:20,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:20,182 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 16:18:20,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 16:18:20,199 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 16:18:20,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:20,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098235638] [2024-11-18 16:18:20,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098235638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:20,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:20,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:20,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997400151] [2024-11-18 16:18:20,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:20,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:20,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:20,201 INFO L87 Difference]: Start difference. First operand 5125 states and 6426 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 16:18:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:20,443 INFO L93 Difference]: Finished difference Result 7592 states and 9555 transitions. [2024-11-18 16:18:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:20,444 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 16:18:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:20,466 INFO L225 Difference]: With dead ends: 7592 [2024-11-18 16:18:20,467 INFO L226 Difference]: Without dead ends: 3517 [2024-11-18 16:18:20,478 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 16:18:20,479 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 330 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 563 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 16:18:20,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 563 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:20,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2024-11-18 16:18:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3497. [2024-11-18 16:18:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2738 states have (on average 1.24981738495252) internal successors, (3422), 2779 states have internal predecessors, (3422), 378 states have call successors, (378), 307 states have call predecessors, (378), 379 states have return successors, (524), 417 states have call predecessors, (524), 377 states have call successors, (524) [2024-11-18 16:18:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4324 transitions. [2024-11-18 16:18:20,830 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4324 transitions. Word has length 77 [2024-11-18 16:18:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:20,831 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 4324 transitions. [2024-11-18 16:18:20,831 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 16:18:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4324 transitions. [2024-11-18 16:18:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:20,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:20,834 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] [2024-11-18 16:18:20,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:18:20,835 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:20,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:20,835 INFO L85 PathProgramCache]: Analyzing trace with hash 903920969, now seen corresponding path program 1 times [2024-11-18 16:18:20,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:20,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076788092] [2024-11-18 16:18:20,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:20,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:20,904 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 16:18:20,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:20,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076788092] [2024-11-18 16:18:20,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076788092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:20,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:20,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005146829] [2024-11-18 16:18:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:20,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:20,907 INFO L87 Difference]: Start difference. First operand 3497 states and 4324 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:21,442 INFO L93 Difference]: Finished difference Result 3799 states and 4776 transitions. [2024-11-18 16:18:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:21,443 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:21,462 INFO L225 Difference]: With dead ends: 3799 [2024-11-18 16:18:21,466 INFO L226 Difference]: Without dead ends: 3654 [2024-11-18 16:18:21,468 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 16:18:21,469 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 557 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:21,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 787 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2024-11-18 16:18:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3643. [2024-11-18 16:18:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2865 states have (on average 1.2610820244328098) internal successors, (3613), 2907 states have internal predecessors, (3613), 390 states have call successors, (390), 313 states have call predecessors, (390), 386 states have return successors, (537), 429 states have call predecessors, (537), 389 states have call successors, (537) [2024-11-18 16:18:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 4540 transitions. [2024-11-18 16:18:21,753 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 4540 transitions. Word has length 79 [2024-11-18 16:18:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:21,753 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 4540 transitions. [2024-11-18 16:18:21,754 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 4540 transitions. [2024-11-18 16:18:21,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:21,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:21,757 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] [2024-11-18 16:18:21,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:18:21,760 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:21,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1140969165, now seen corresponding path program 1 times [2024-11-18 16:18:21,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:21,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795450911] [2024-11-18 16:18:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:21,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:21,931 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 16:18:21,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:21,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795450911] [2024-11-18 16:18:21,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795450911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:21,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:21,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:21,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008782438] [2024-11-18 16:18:21,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:21,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:21,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:21,933 INFO L87 Difference]: Start difference. First operand 3643 states and 4540 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:22,865 INFO L93 Difference]: Finished difference Result 4114 states and 5245 transitions. [2024-11-18 16:18:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:22,866 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:22,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:22,893 INFO L225 Difference]: With dead ends: 4114 [2024-11-18 16:18:22,894 INFO L226 Difference]: Without dead ends: 3823 [2024-11-18 16:18:22,899 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 16:18:22,900 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 549 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:22,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1374 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2024-11-18 16:18:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3780. [2024-11-18 16:18:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 2983 states have (on average 1.2691920885015084) internal successors, (3786), 3026 states have internal predecessors, (3786), 402 states have call successors, (402), 319 states have call predecessors, (402), 393 states have return successors, (552), 442 states have call predecessors, (552), 401 states have call successors, (552) [2024-11-18 16:18:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 4740 transitions. [2024-11-18 16:18:23,294 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 4740 transitions. Word has length 79 [2024-11-18 16:18:23,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:23,295 INFO L471 AbstractCegarLoop]: Abstraction has 3780 states and 4740 transitions. [2024-11-18 16:18:23,296 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 4740 transitions. [2024-11-18 16:18:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:23,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:23,299 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] [2024-11-18 16:18:23,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:18:23,299 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:23,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:23,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1086576267, now seen corresponding path program 1 times [2024-11-18 16:18:23,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:23,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066939133] [2024-11-18 16:18:23,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:23,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:23,422 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 16:18:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066939133] [2024-11-18 16:18:23,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066939133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:23,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:23,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641529083] [2024-11-18 16:18:23,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:23,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:23,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:23,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:23,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:23,425 INFO L87 Difference]: Start difference. First operand 3780 states and 4740 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:24,053 INFO L93 Difference]: Finished difference Result 4541 states and 5876 transitions. [2024-11-18 16:18:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:24,053 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:24,077 INFO L225 Difference]: With dead ends: 4541 [2024-11-18 16:18:24,077 INFO L226 Difference]: Without dead ends: 4113 [2024-11-18 16:18:24,081 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 16:18:24,081 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 544 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:24,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1358 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2024-11-18 16:18:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4067. [2024-11-18 16:18:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.285139318885449) internal successors, (4151), 3277 states have internal predecessors, (4151), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5165 transitions. [2024-11-18 16:18:24,341 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5165 transitions. Word has length 79 [2024-11-18 16:18:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:24,341 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5165 transitions. [2024-11-18 16:18:24,341 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5165 transitions. [2024-11-18 16:18:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:24,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:24,343 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] [2024-11-18 16:18:24,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:18:24,344 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:24,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash 669179661, now seen corresponding path program 1 times [2024-11-18 16:18:24,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:24,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653177349] [2024-11-18 16:18:24,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:24,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:24,413 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 16:18:24,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653177349] [2024-11-18 16:18:24,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653177349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:24,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:24,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:24,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446070959] [2024-11-18 16:18:24,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:24,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:24,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:24,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:24,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:24,415 INFO L87 Difference]: Start difference. First operand 4067 states and 5165 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:24,941 INFO L93 Difference]: Finished difference Result 4848 states and 6346 transitions. [2024-11-18 16:18:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:24,942 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:24,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:24,954 INFO L225 Difference]: With dead ends: 4848 [2024-11-18 16:18:24,954 INFO L226 Difference]: Without dead ends: 4133 [2024-11-18 16:18:24,957 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 16:18:24,957 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 451 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:24,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 597 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2024-11-18 16:18:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4067. [2024-11-18 16:18:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.2835913312693499) internal successors, (4146), 3277 states have internal predecessors, (4146), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5160 transitions. [2024-11-18 16:18:25,256 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5160 transitions. Word has length 79 [2024-11-18 16:18:25,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:25,256 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5160 transitions. [2024-11-18 16:18:25,256 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5160 transitions. [2024-11-18 16:18:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:25,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:25,259 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] [2024-11-18 16:18:25,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:18:25,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:25,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1348451915, now seen corresponding path program 1 times [2024-11-18 16:18:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568369144] [2024-11-18 16:18:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:25,324 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 16:18:25,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:25,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568369144] [2024-11-18 16:18:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568369144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:25,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693841705] [2024-11-18 16:18:25,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:25,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:25,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:25,326 INFO L87 Difference]: Start difference. First operand 4067 states and 5160 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:25,848 INFO L93 Difference]: Finished difference Result 4837 states and 6314 transitions. [2024-11-18 16:18:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:25,849 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:25,861 INFO L225 Difference]: With dead ends: 4837 [2024-11-18 16:18:25,862 INFO L226 Difference]: Without dead ends: 4122 [2024-11-18 16:18:25,864 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 16:18:25,865 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 446 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:25,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 587 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2024-11-18 16:18:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 4067. [2024-11-18 16:18:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.2820433436532508) internal successors, (4141), 3277 states have internal predecessors, (4141), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-18 16:18:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5155 transitions. [2024-11-18 16:18:26,389 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5155 transitions. Word has length 79 [2024-11-18 16:18:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:26,389 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5155 transitions. [2024-11-18 16:18:26,390 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5155 transitions. [2024-11-18 16:18:26,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:26,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:26,392 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] [2024-11-18 16:18:26,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:18:26,393 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:26,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:26,393 INFO L85 PathProgramCache]: Analyzing trace with hash -984940723, now seen corresponding path program 1 times [2024-11-18 16:18:26,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:26,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865875410] [2024-11-18 16:18:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:26,475 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 16:18:26,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865875410] [2024-11-18 16:18:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865875410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:26,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:26,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:26,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26499014] [2024-11-18 16:18:26,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:26,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:26,478 INFO L87 Difference]: Start difference. First operand 4067 states and 5155 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:27,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:27,406 INFO L93 Difference]: Finished difference Result 5482 states and 7250 transitions. [2024-11-18 16:18:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:27,407 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:27,421 INFO L225 Difference]: With dead ends: 5482 [2024-11-18 16:18:27,421 INFO L226 Difference]: Without dead ends: 4767 [2024-11-18 16:18:27,424 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 16:18:27,424 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 596 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:27,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1291 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2024-11-18 16:18:27,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4624. [2024-11-18 16:18:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 3705 states have (on average 1.3044534412955466) internal successors, (4833), 3766 states have internal predecessors, (4833), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-18 16:18:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 5983 transitions. [2024-11-18 16:18:27,857 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 5983 transitions. Word has length 79 [2024-11-18 16:18:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:27,857 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 5983 transitions. [2024-11-18 16:18:27,857 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:27,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 5983 transitions. [2024-11-18 16:18:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:27,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:27,860 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] [2024-11-18 16:18:27,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:18:27,860 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:27,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -783116789, now seen corresponding path program 1 times [2024-11-18 16:18:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:27,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033975454] [2024-11-18 16:18:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:18:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033975454] [2024-11-18 16:18:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033975454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:27,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:27,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321462188] [2024-11-18 16:18:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:27,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:27,928 INFO L87 Difference]: Start difference. First operand 4624 states and 5983 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:28,487 INFO L93 Difference]: Finished difference Result 5954 states and 7968 transitions. [2024-11-18 16:18:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:28,488 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:28,506 INFO L225 Difference]: With dead ends: 5954 [2024-11-18 16:18:28,506 INFO L226 Difference]: Without dead ends: 4682 [2024-11-18 16:18:28,512 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 16:18:28,513 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 441 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:28,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 567 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:28,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2024-11-18 16:18:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4624. [2024-11-18 16:18:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 3705 states have (on average 1.3020242914979756) internal successors, (4824), 3766 states have internal predecessors, (4824), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-18 16:18:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 5974 transitions. [2024-11-18 16:18:29,017 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 5974 transitions. Word has length 79 [2024-11-18 16:18:29,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:29,017 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 5974 transitions. [2024-11-18 16:18:29,017 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 5974 transitions. [2024-11-18 16:18:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:29,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:29,022 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] [2024-11-18 16:18:29,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:18:29,023 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:29,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash -349387703, now seen corresponding path program 1 times [2024-11-18 16:18:29,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228446480] [2024-11-18 16:18:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:29,078 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 16:18:29,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:29,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228446480] [2024-11-18 16:18:29,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228446480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:29,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:29,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:29,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171528902] [2024-11-18 16:18:29,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:29,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:29,080 INFO L87 Difference]: Start difference. First operand 4624 states and 5974 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:29,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:29,498 INFO L93 Difference]: Finished difference Result 5922 states and 7923 transitions. [2024-11-18 16:18:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:29,499 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:29,512 INFO L225 Difference]: With dead ends: 5922 [2024-11-18 16:18:29,512 INFO L226 Difference]: Without dead ends: 4651 [2024-11-18 16:18:29,515 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 16:18:29,516 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 16:18:29,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2024-11-18 16:18:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4651. [2024-11-18 16:18:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4651 states, 3732 states have (on average 1.29983922829582) internal successors, (4851), 3793 states have internal predecessors, (4851), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-18 16:18:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 6001 transitions. [2024-11-18 16:18:29,904 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 6001 transitions. Word has length 79 [2024-11-18 16:18:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:29,904 INFO L471 AbstractCegarLoop]: Abstraction has 4651 states and 6001 transitions. [2024-11-18 16:18:29,905 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 6001 transitions. [2024-11-18 16:18:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:29,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:29,909 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] [2024-11-18 16:18:29,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:18:29,909 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:29,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash -364906421, now seen corresponding path program 1 times [2024-11-18 16:18:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348336106] [2024-11-18 16:18:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:29,945 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 16:18:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348336106] [2024-11-18 16:18:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348336106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:29,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:29,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955537248] [2024-11-18 16:18:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:29,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:29,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:29,948 INFO L87 Difference]: Start difference. First operand 4651 states and 6001 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:30,716 INFO L93 Difference]: Finished difference Result 7201 states and 9748 transitions. [2024-11-18 16:18:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:30,717 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:30,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:30,741 INFO L225 Difference]: With dead ends: 7201 [2024-11-18 16:18:30,742 INFO L226 Difference]: Without dead ends: 5903 [2024-11-18 16:18:30,748 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 16:18:30,749 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 521 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:30,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1002 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:30,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2024-11-18 16:18:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5883. [2024-11-18 16:18:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 4794 states have (on average 1.3291614518147685) internal successors, (6372), 4875 states have internal predecessors, (6372), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-18 16:18:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 7771 transitions. [2024-11-18 16:18:31,723 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 7771 transitions. Word has length 79 [2024-11-18 16:18:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:31,723 INFO L471 AbstractCegarLoop]: Abstraction has 5883 states and 7771 transitions. [2024-11-18 16:18:31,723 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 7771 transitions. [2024-11-18 16:18:31,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:31,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:31,728 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] [2024-11-18 16:18:31,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:18:31,728 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:31,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:31,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2036618700, now seen corresponding path program 1 times [2024-11-18 16:18:31,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:31,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926550359] [2024-11-18 16:18:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:31,794 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 16:18:31,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:31,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926550359] [2024-11-18 16:18:31,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926550359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:31,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:31,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:31,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651072854] [2024-11-18 16:18:31,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:31,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:31,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:31,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:31,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:31,797 INFO L87 Difference]: Start difference. First operand 5883 states and 7771 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:32,418 INFO L93 Difference]: Finished difference Result 8440 states and 11559 transitions. [2024-11-18 16:18:32,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:32,419 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:32,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:32,442 INFO L225 Difference]: With dead ends: 8440 [2024-11-18 16:18:32,442 INFO L226 Difference]: Without dead ends: 5910 [2024-11-18 16:18:32,453 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 16:18:32,455 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 16:18:32,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:32,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2024-11-18 16:18:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5910. [2024-11-18 16:18:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 4821 states have (on average 1.3254511512134413) internal successors, (6390), 4902 states have internal predecessors, (6390), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-18 16:18:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7789 transitions. [2024-11-18 16:18:33,092 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7789 transitions. Word has length 79 [2024-11-18 16:18:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:33,093 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 7789 transitions. [2024-11-18 16:18:33,093 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7789 transitions. [2024-11-18 16:18:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:33,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:33,097 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] [2024-11-18 16:18:33,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:18:33,097 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:33,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:33,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1139225422, now seen corresponding path program 1 times [2024-11-18 16:18:33,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:33,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426999177] [2024-11-18 16:18:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:33,146 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 16:18:33,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:33,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426999177] [2024-11-18 16:18:33,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426999177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:33,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:33,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303243716] [2024-11-18 16:18:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:33,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:33,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:33,149 INFO L87 Difference]: Start difference. First operand 5910 states and 7789 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:33,787 INFO L93 Difference]: Finished difference Result 8521 states and 11631 transitions. [2024-11-18 16:18:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:33,791 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:33,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:33,827 INFO L225 Difference]: With dead ends: 8521 [2024-11-18 16:18:33,827 INFO L226 Difference]: Without dead ends: 5964 [2024-11-18 16:18:33,837 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 16:18:33,841 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 16:18:33,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2024-11-18 16:18:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 5964. [2024-11-18 16:18:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 4875 states have (on average 1.321846153846154) internal successors, (6444), 4956 states have internal predecessors, (6444), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-18 16:18:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 7843 transitions. [2024-11-18 16:18:34,433 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 7843 transitions. Word has length 79 [2024-11-18 16:18:34,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:34,433 INFO L471 AbstractCegarLoop]: Abstraction has 5964 states and 7843 transitions. [2024-11-18 16:18:34,434 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 7843 transitions. [2024-11-18 16:18:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:34,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:34,437 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] [2024-11-18 16:18:34,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:18:34,437 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:34,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1798756944, now seen corresponding path program 1 times [2024-11-18 16:18:34,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:34,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944174408] [2024-11-18 16:18:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:34,464 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 16:18:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944174408] [2024-11-18 16:18:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944174408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:34,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:34,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:34,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632520179] [2024-11-18 16:18:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:34,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:34,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:34,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:34,466 INFO L87 Difference]: Start difference. First operand 5964 states and 7843 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:35,258 INFO L93 Difference]: Finished difference Result 11095 states and 15244 transitions. [2024-11-18 16:18:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:35,258 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:35,296 INFO L225 Difference]: With dead ends: 11095 [2024-11-18 16:18:35,297 INFO L226 Difference]: Without dead ends: 8484 [2024-11-18 16:18:35,308 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 16:18:35,310 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 533 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:35,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1002 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:18:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2024-11-18 16:18:36,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 8446. [2024-11-18 16:18:36,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 7026 states have (on average 1.3475661827497865) internal successors, (9468), 7147 states have internal predecessors, (9468), 749 states have call successors, (749), 517 states have call predecessors, (749), 669 states have return successors, (1130), 795 states have call predecessors, (1130), 748 states have call successors, (1130) [2024-11-18 16:18:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 11347 transitions. [2024-11-18 16:18:36,092 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 11347 transitions. Word has length 79 [2024-11-18 16:18:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:36,092 INFO L471 AbstractCegarLoop]: Abstraction has 8446 states and 11347 transitions. [2024-11-18 16:18:36,093 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 11347 transitions. [2024-11-18 16:18:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:36,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:36,097 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] [2024-11-18 16:18:36,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:18:36,097 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:36,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1444761263, now seen corresponding path program 1 times [2024-11-18 16:18:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722815572] [2024-11-18 16:18:36,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:36,146 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 16:18:36,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:36,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722815572] [2024-11-18 16:18:36,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722815572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:36,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:36,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921167670] [2024-11-18 16:18:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:36,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:36,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:36,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:36,149 INFO L87 Difference]: Start difference. First operand 8446 states and 11347 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:36,836 INFO L93 Difference]: Finished difference Result 13593 states and 18822 transitions. [2024-11-18 16:18:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:36,837 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:36,865 INFO L225 Difference]: With dead ends: 13593 [2024-11-18 16:18:36,865 INFO L226 Difference]: Without dead ends: 8500 [2024-11-18 16:18:36,875 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 16:18:36,876 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 16:18:36,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8500 states. [2024-11-18 16:18:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8500 to 8500. [2024-11-18 16:18:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8500 states, 7080 states have (on average 1.3423728813559321) internal successors, (9504), 7201 states have internal predecessors, (9504), 749 states have call successors, (749), 517 states have call predecessors, (749), 669 states have return successors, (1130), 795 states have call predecessors, (1130), 748 states have call successors, (1130) [2024-11-18 16:18:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8500 states to 8500 states and 11383 transitions. [2024-11-18 16:18:37,450 INFO L78 Accepts]: Start accepts. Automaton has 8500 states and 11383 transitions. Word has length 79 [2024-11-18 16:18:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:37,450 INFO L471 AbstractCegarLoop]: Abstraction has 8500 states and 11383 transitions. [2024-11-18 16:18:37,450 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:37,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8500 states and 11383 transitions. [2024-11-18 16:18:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:37,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:37,453 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] [2024-11-18 16:18:37,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:18:37,454 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:37,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash -743161389, now seen corresponding path program 1 times [2024-11-18 16:18:37,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:37,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231773859] [2024-11-18 16:18:37,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:37,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:37,533 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 16:18:37,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231773859] [2024-11-18 16:18:37,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231773859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:37,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:37,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018982678] [2024-11-18 16:18:37,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:37,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:37,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:37,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:37,535 INFO L87 Difference]: Start difference. First operand 8500 states and 11383 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:38,864 INFO L93 Difference]: Finished difference Result 9952 states and 13469 transitions. [2024-11-18 16:18:38,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:38,865 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:38,890 INFO L225 Difference]: With dead ends: 9952 [2024-11-18 16:18:38,890 INFO L226 Difference]: Without dead ends: 6942 [2024-11-18 16:18:38,898 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 16:18:38,898 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 531 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:38,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 994 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6942 states. [2024-11-18 16:18:39,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6942 to 6656. [2024-11-18 16:18:39,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 5488 states have (on average 1.313411078717201) internal successors, (7208), 5553 states have internal predecessors, (7208), 625 states have call successors, (625), 445 states have call predecessors, (625), 541 states have return successors, (826), 667 states have call predecessors, (826), 624 states have call successors, (826) [2024-11-18 16:18:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 8659 transitions. [2024-11-18 16:18:39,957 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 8659 transitions. Word has length 79 [2024-11-18 16:18:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:39,958 INFO L471 AbstractCegarLoop]: Abstraction has 6656 states and 8659 transitions. [2024-11-18 16:18:39,958 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 8659 transitions. [2024-11-18 16:18:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:39,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:39,963 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] [2024-11-18 16:18:39,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:18:39,963 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:39,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash -681121775, now seen corresponding path program 1 times [2024-11-18 16:18:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:39,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588189708] [2024-11-18 16:18:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:39,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:40,076 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 16:18:40,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588189708] [2024-11-18 16:18:40,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588189708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:40,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:40,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:40,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387944840] [2024-11-18 16:18:40,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:40,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:40,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:40,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:40,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:40,079 INFO L87 Difference]: Start difference. First operand 6656 states and 8659 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:41,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:41,130 INFO L93 Difference]: Finished difference Result 7972 states and 10521 transitions. [2024-11-18 16:18:41,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:41,131 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:41,148 INFO L225 Difference]: With dead ends: 7972 [2024-11-18 16:18:41,149 INFO L226 Difference]: Without dead ends: 5702 [2024-11-18 16:18:41,154 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 16:18:41,155 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 523 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:41,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 986 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:18:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2024-11-18 16:18:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5552. [2024-11-18 16:18:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 4532 states have (on average 1.2983230361871139) internal successors, (5884), 4581 states have internal predecessors, (5884), 541 states have call successors, (541), 397 states have call predecessors, (541), 477 states have return successors, (700), 581 states have call predecessors, (700), 540 states have call successors, (700) [2024-11-18 16:18:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7125 transitions. [2024-11-18 16:18:41,512 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7125 transitions. Word has length 79 [2024-11-18 16:18:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:41,512 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7125 transitions. [2024-11-18 16:18:41,513 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7125 transitions. [2024-11-18 16:18:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:41,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:41,514 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] [2024-11-18 16:18:41,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 16:18:41,515 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:41,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash -540573165, now seen corresponding path program 1 times [2024-11-18 16:18:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770674722] [2024-11-18 16:18:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:41,567 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 16:18:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770674722] [2024-11-18 16:18:41,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770674722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:41,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:41,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:41,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837425515] [2024-11-18 16:18:41,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:41,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:41,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:41,570 INFO L87 Difference]: Start difference. First operand 5552 states and 7125 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:42,231 INFO L93 Difference]: Finished difference Result 7750 states and 10164 transitions. [2024-11-18 16:18:42,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:18:42,231 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:42,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:42,247 INFO L225 Difference]: With dead ends: 7750 [2024-11-18 16:18:42,247 INFO L226 Difference]: Without dead ends: 5552 [2024-11-18 16:18:42,254 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 16:18:42,254 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 436 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:42,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 562 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2024-11-18 16:18:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 5552. [2024-11-18 16:18:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 4532 states have (on average 1.292144748455428) internal successors, (5856), 4581 states have internal predecessors, (5856), 541 states have call successors, (541), 397 states have call predecessors, (541), 477 states have return successors, (700), 581 states have call predecessors, (700), 540 states have call successors, (700) [2024-11-18 16:18:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7097 transitions. [2024-11-18 16:18:42,728 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7097 transitions. Word has length 79 [2024-11-18 16:18:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:42,728 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7097 transitions. [2024-11-18 16:18:42,729 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7097 transitions. [2024-11-18 16:18:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:42,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:42,731 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] [2024-11-18 16:18:42,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 16:18:42,731 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:42,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash -674586671, now seen corresponding path program 1 times [2024-11-18 16:18:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93599251] [2024-11-18 16:18:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:42,788 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 16:18:42,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:42,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93599251] [2024-11-18 16:18:42,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93599251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:42,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:42,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512931647] [2024-11-18 16:18:42,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:42,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:42,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:42,791 INFO L87 Difference]: Start difference. First operand 5552 states and 7097 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:43,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:43,548 INFO L93 Difference]: Finished difference Result 8311 states and 10880 transitions. [2024-11-18 16:18:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:43,548 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:43,572 INFO L225 Difference]: With dead ends: 8311 [2024-11-18 16:18:43,572 INFO L226 Difference]: Without dead ends: 6112 [2024-11-18 16:18:43,579 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 16:18:43,580 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 504 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:43,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 561 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2024-11-18 16:18:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5848. [2024-11-18 16:18:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5848 states, 4804 states have (on average 1.2805995004163198) internal successors, (6152), 4853 states have internal predecessors, (6152), 549 states have call successors, (549), 413 states have call predecessors, (549), 493 states have return successors, (724), 589 states have call predecessors, (724), 548 states have call successors, (724) [2024-11-18 16:18:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 7425 transitions. [2024-11-18 16:18:44,295 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 7425 transitions. Word has length 79 [2024-11-18 16:18:44,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:44,295 INFO L471 AbstractCegarLoop]: Abstraction has 5848 states and 7425 transitions. [2024-11-18 16:18:44,295 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 7425 transitions. [2024-11-18 16:18:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:44,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:44,297 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] [2024-11-18 16:18:44,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 16:18:44,297 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:44,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:44,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1814942291, now seen corresponding path program 1 times [2024-11-18 16:18:44,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:44,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47266803] [2024-11-18 16:18:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:44,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:44,407 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 16:18:44,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:44,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47266803] [2024-11-18 16:18:44,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47266803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:44,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:44,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949703767] [2024-11-18 16:18:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:44,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:44,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:44,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:44,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:44,409 INFO L87 Difference]: Start difference. First operand 5848 states and 7425 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:45,469 INFO L93 Difference]: Finished difference Result 7994 states and 10299 transitions. [2024-11-18 16:18:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:18:45,470 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:45,488 INFO L225 Difference]: With dead ends: 7994 [2024-11-18 16:18:45,488 INFO L226 Difference]: Without dead ends: 6066 [2024-11-18 16:18:45,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:18:45,493 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 516 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:45,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 941 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2024-11-18 16:18:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5832. [2024-11-18 16:18:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 4792 states have (on average 1.2787979966611018) internal successors, (6128), 4837 states have internal predecessors, (6128), 549 states have call successors, (549), 413 states have call predecessors, (549), 489 states have return successors, (715), 588 states have call predecessors, (715), 548 states have call successors, (715) [2024-11-18 16:18:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 7392 transitions. [2024-11-18 16:18:45,987 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 7392 transitions. Word has length 79 [2024-11-18 16:18:45,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:45,988 INFO L471 AbstractCegarLoop]: Abstraction has 5832 states and 7392 transitions. [2024-11-18 16:18:45,988 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 7392 transitions. [2024-11-18 16:18:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:45,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:45,992 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] [2024-11-18 16:18:45,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 16:18:45,992 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:45,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2033797009, now seen corresponding path program 1 times [2024-11-18 16:18:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709747894] [2024-11-18 16:18:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:46,049 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 16:18:46,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:46,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709747894] [2024-11-18 16:18:46,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709747894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:46,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:46,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:18:46,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041563881] [2024-11-18 16:18:46,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:46,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:18:46,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:46,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:18:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:18:46,051 INFO L87 Difference]: Start difference. First operand 5832 states and 7392 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:46,824 INFO L93 Difference]: Finished difference Result 8906 states and 11440 transitions. [2024-11-18 16:18:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:18:46,825 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-18 16:18:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:46,840 INFO L225 Difference]: With dead ends: 8906 [2024-11-18 16:18:46,840 INFO L226 Difference]: Without dead ends: 6428 [2024-11-18 16:18:46,844 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 16:18:46,844 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 462 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:46,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 556 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:18:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2024-11-18 16:18:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 6388. [2024-11-18 16:18:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 5303 states have (on average 1.2617386385065057) internal successors, (6691), 5348 states have internal predecessors, (6691), 563 states have call successors, (563), 443 states have call predecessors, (563), 520 states have return successors, (745), 603 states have call predecessors, (745), 562 states have call successors, (745) [2024-11-18 16:18:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 7999 transitions. [2024-11-18 16:18:47,370 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 7999 transitions. Word has length 79 [2024-11-18 16:18:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:47,370 INFO L471 AbstractCegarLoop]: Abstraction has 6388 states and 7999 transitions. [2024-11-18 16:18:47,371 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:18:47,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 7999 transitions. [2024-11-18 16:18:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 16:18:47,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:47,373 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] [2024-11-18 16:18:47,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 16:18:47,373 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:47,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1216148559, now seen corresponding path program 1 times [2024-11-18 16:18:47,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:47,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659486529] [2024-11-18 16:18:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:47,395 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 16:18:47,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:47,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659486529] [2024-11-18 16:18:47,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659486529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:47,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:47,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:47,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26351624] [2024-11-18 16:18:47,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:47,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:47,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:47,396 INFO L87 Difference]: Start difference. First operand 6388 states and 7999 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 16:18:47,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:47,910 INFO L93 Difference]: Finished difference Result 11105 states and 14150 transitions. [2024-11-18 16:18:47,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:47,911 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-18 16:18:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:47,931 INFO L225 Difference]: With dead ends: 11105 [2024-11-18 16:18:47,931 INFO L226 Difference]: Without dead ends: 8070 [2024-11-18 16:18:47,937 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 16:18:47,938 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 317 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 544 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 16:18:47,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 544 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:47,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8070 states. [2024-11-18 16:18:48,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8070 to 8056. [2024-11-18 16:18:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8056 states, 6776 states have (on average 1.2626918536009446) internal successors, (8556), 6837 states have internal predecessors, (8556), 675 states have call successors, (675), 523 states have call predecessors, (675), 603 states have return successors, (864), 702 states have call predecessors, (864), 674 states have call successors, (864) [2024-11-18 16:18:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8056 states to 8056 states and 10095 transitions. [2024-11-18 16:18:48,538 INFO L78 Accepts]: Start accepts. Automaton has 8056 states and 10095 transitions. Word has length 79 [2024-11-18 16:18:48,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:48,539 INFO L471 AbstractCegarLoop]: Abstraction has 8056 states and 10095 transitions. [2024-11-18 16:18:48,539 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-18 16:18:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 8056 states and 10095 transitions. [2024-11-18 16:18:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 16:18:48,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:48,542 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 16:18:48,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 16:18:48,543 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:48,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:48,543 INFO L85 PathProgramCache]: Analyzing trace with hash -484741378, now seen corresponding path program 1 times [2024-11-18 16:18:48,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:48,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656796470] [2024-11-18 16:18:48,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:48,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:48,607 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 16:18:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656796470] [2024-11-18 16:18:48,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656796470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:48,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:48,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:18:48,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584722565] [2024-11-18 16:18:48,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:48,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:18:48,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:48,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:18:48,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:18:48,609 INFO L87 Difference]: Start difference. First operand 8056 states and 10095 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 16:18:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:50,202 INFO L93 Difference]: Finished difference Result 14908 states and 18492 transitions. [2024-11-18 16:18:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 16:18:50,203 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 16:18:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:50,231 INFO L225 Difference]: With dead ends: 14908 [2024-11-18 16:18:50,232 INFO L226 Difference]: Without dead ends: 10285 [2024-11-18 16:18:50,242 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 16:18:50,243 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 581 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:50,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1126 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:50,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2024-11-18 16:18:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 10028. [2024-11-18 16:18:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 8296 states have (on average 1.2475891996142718) internal successors, (10350), 8393 states have internal predecessors, (10350), 884 states have call successors, (884), 705 states have call predecessors, (884), 846 states have return successors, (1220), 936 states have call predecessors, (1220), 883 states have call successors, (1220) [2024-11-18 16:18:51,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 12454 transitions. [2024-11-18 16:18:51,194 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 12454 transitions. Word has length 84 [2024-11-18 16:18:51,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:51,195 INFO L471 AbstractCegarLoop]: Abstraction has 10028 states and 12454 transitions. [2024-11-18 16:18:51,195 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 16:18:51,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 12454 transitions. [2024-11-18 16:18:51,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:18:51,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:51,198 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 16:18:51,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 16:18:51,198 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:51,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1046063412, now seen corresponding path program 1 times [2024-11-18 16:18:51,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:51,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556538827] [2024-11-18 16:18:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:51,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:51,256 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 16:18:51,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:51,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556538827] [2024-11-18 16:18:51,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556538827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:51,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:51,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:18:51,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099485864] [2024-11-18 16:18:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:51,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:18:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:51,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:18:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:18:51,258 INFO L87 Difference]: Start difference. First operand 10028 states and 12454 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 16:18:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:53,016 INFO L93 Difference]: Finished difference Result 14052 states and 17337 transitions. [2024-11-18 16:18:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 16:18:53,016 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 16:18:53,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:53,058 INFO L225 Difference]: With dead ends: 14052 [2024-11-18 16:18:53,058 INFO L226 Difference]: Without dead ends: 9408 [2024-11-18 16:18:53,071 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 16:18:53,072 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1113 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:53,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 1210 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:18:53,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9408 states. [2024-11-18 16:18:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9408 to 9127. [2024-11-18 16:18:53,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9127 states, 7601 states have (on average 1.2456255755821601) internal successors, (9468), 7681 states have internal predecessors, (9468), 788 states have call successors, (788), 620 states have call predecessors, (788), 736 states have return successors, (1008), 832 states have call predecessors, (1008), 787 states have call successors, (1008) [2024-11-18 16:18:53,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9127 states to 9127 states and 11264 transitions. [2024-11-18 16:18:53,775 INFO L78 Accepts]: Start accepts. Automaton has 9127 states and 11264 transitions. Word has length 93 [2024-11-18 16:18:53,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:53,776 INFO L471 AbstractCegarLoop]: Abstraction has 9127 states and 11264 transitions. [2024-11-18 16:18:53,776 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 16:18:53,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9127 states and 11264 transitions. [2024-11-18 16:18:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 16:18:53,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:53,782 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] [2024-11-18 16:18:53,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 16:18:53,783 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:53,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1180889490, now seen corresponding path program 1 times [2024-11-18 16:18:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:53,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643775084] [2024-11-18 16:18:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:53,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:53,854 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 16:18:53,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:53,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643775084] [2024-11-18 16:18:53,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643775084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:53,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:53,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:53,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449644024] [2024-11-18 16:18:53,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:53,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:53,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:53,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:53,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:53,856 INFO L87 Difference]: Start difference. First operand 9127 states and 11264 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:18:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:55,212 INFO L93 Difference]: Finished difference Result 19042 states and 23946 transitions. [2024-11-18 16:18:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:18:55,213 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 129 [2024-11-18 16:18:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:55,253 INFO L225 Difference]: With dead ends: 19042 [2024-11-18 16:18:55,254 INFO L226 Difference]: Without dead ends: 14340 [2024-11-18 16:18:55,262 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 16:18:55,262 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 455 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:18:55,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 643 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:18:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14340 states. [2024-11-18 16:18:56,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14340 to 14298. [2024-11-18 16:18:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14298 states, 12182 states have (on average 1.2469216877360039) internal successors, (15190), 12315 states have internal predecessors, (15190), 1087 states have call successors, (1087), 840 states have call predecessors, (1087), 1027 states have return successors, (1528), 1150 states have call predecessors, (1528), 1086 states have call successors, (1528) [2024-11-18 16:18:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14298 states to 14298 states and 17805 transitions. [2024-11-18 16:18:56,471 INFO L78 Accepts]: Start accepts. Automaton has 14298 states and 17805 transitions. Word has length 129 [2024-11-18 16:18:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:56,472 INFO L471 AbstractCegarLoop]: Abstraction has 14298 states and 17805 transitions. [2024-11-18 16:18:56,472 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:18:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 14298 states and 17805 transitions. [2024-11-18 16:18:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 16:18:56,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:56,481 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] [2024-11-18 16:18:56,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 16:18:56,481 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:56,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash 88254288, now seen corresponding path program 1 times [2024-11-18 16:18:56,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:56,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034933998] [2024-11-18 16:18:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:56,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:56,510 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 16:18:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034933998] [2024-11-18 16:18:56,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034933998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:56,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:56,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:18:56,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377863636] [2024-11-18 16:18:56,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:56,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:18:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:18:56,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:18:56,512 INFO L87 Difference]: Start difference. First operand 14298 states and 17805 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:18:57,351 INFO L93 Difference]: Finished difference Result 21966 states and 27519 transitions. [2024-11-18 16:18:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:18:57,351 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 129 [2024-11-18 16:18:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:18:57,536 INFO L225 Difference]: With dead ends: 21966 [2024-11-18 16:18:57,536 INFO L226 Difference]: Without dead ends: 12093 [2024-11-18 16:18:57,545 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 16:18:57,546 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 214 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 477 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 16:18:57,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:18:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12093 states. [2024-11-18 16:18:58,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12093 to 12093. [2024-11-18 16:18:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12093 states, 10242 states have (on average 1.2439953134153485) internal successors, (12741), 10364 states have internal predecessors, (12741), 936 states have call successors, (936), 730 states have call predecessors, (936), 913 states have return successors, (1320), 1005 states have call predecessors, (1320), 935 states have call successors, (1320) [2024-11-18 16:18:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12093 states to 12093 states and 14997 transitions. [2024-11-18 16:18:58,390 INFO L78 Accepts]: Start accepts. Automaton has 12093 states and 14997 transitions. Word has length 129 [2024-11-18 16:18:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:18:58,390 INFO L471 AbstractCegarLoop]: Abstraction has 12093 states and 14997 transitions. [2024-11-18 16:18:58,390 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:18:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 12093 states and 14997 transitions. [2024-11-18 16:18:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 16:18:58,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:18:58,396 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] [2024-11-18 16:18:58,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 16:18:58,397 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:18:58,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:18:58,397 INFO L85 PathProgramCache]: Analyzing trace with hash -489510537, now seen corresponding path program 1 times [2024-11-18 16:18:58,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:18:58,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817872948] [2024-11-18 16:18:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:18:58,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:18:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:18:58,462 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 16:18:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:18:58,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817872948] [2024-11-18 16:18:58,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817872948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:18:58,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:18:58,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:18:58,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994729989] [2024-11-18 16:18:58,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:18:58,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:18:58,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:18:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:18:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:18:58,466 INFO L87 Difference]: Start difference. First operand 12093 states and 14997 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:00,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:00,051 INFO L93 Difference]: Finished difference Result 26986 states and 33861 transitions. [2024-11-18 16:19:00,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:19:00,051 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 131 [2024-11-18 16:19:00,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:00,099 INFO L225 Difference]: With dead ends: 26986 [2024-11-18 16:19:00,099 INFO L226 Difference]: Without dead ends: 19318 [2024-11-18 16:19:00,115 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 16:19:00,119 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 433 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:19:00,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 678 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:19:00,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19318 states. [2024-11-18 16:19:01,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19318 to 18702. [2024-11-18 16:19:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18702 states, 15997 states have (on average 1.244733387510158) internal successors, (19912), 16250 states have internal predecessors, (19912), 1325 states have call successors, (1325), 990 states have call predecessors, (1325), 1378 states have return successors, (2187), 1469 states have call predecessors, (2187), 1324 states have call successors, (2187) [2024-11-18 16:19:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18702 states to 18702 states and 23424 transitions. [2024-11-18 16:19:01,540 INFO L78 Accepts]: Start accepts. Automaton has 18702 states and 23424 transitions. Word has length 131 [2024-11-18 16:19:01,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:01,540 INFO L471 AbstractCegarLoop]: Abstraction has 18702 states and 23424 transitions. [2024-11-18 16:19:01,541 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 18702 states and 23424 transitions. [2024-11-18 16:19:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 16:19:01,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:01,549 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] [2024-11-18 16:19:01,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 16:19:01,549 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:01,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1463431, now seen corresponding path program 1 times [2024-11-18 16:19:01,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:01,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541107926] [2024-11-18 16:19:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:01,572 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 16:19:01,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:01,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541107926] [2024-11-18 16:19:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541107926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:19:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426701947] [2024-11-18 16:19:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:01,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:19:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:01,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:19:01,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:01,573 INFO L87 Difference]: Start difference. First operand 18702 states and 23424 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:03,001 INFO L93 Difference]: Finished difference Result 32975 states and 41557 transitions. [2024-11-18 16:19:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:19:03,001 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 131 [2024-11-18 16:19:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:03,069 INFO L225 Difference]: With dead ends: 32975 [2024-11-18 16:19:03,069 INFO L226 Difference]: Without dead ends: 18697 [2024-11-18 16:19:03,102 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 16:19:03,103 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 212 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 476 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 16:19:03,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:19:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18697 states. [2024-11-18 16:19:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18697 to 18697. [2024-11-18 16:19:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18697 states, 15995 states have (on average 1.2446389496717725) internal successors, (19908), 16247 states have internal predecessors, (19908), 1322 states have call successors, (1322), 990 states have call predecessors, (1322), 1378 states have return successors, (2183), 1466 states have call predecessors, (2183), 1321 states have call successors, (2183) [2024-11-18 16:19:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18697 states to 18697 states and 23413 transitions. [2024-11-18 16:19:04,783 INFO L78 Accepts]: Start accepts. Automaton has 18697 states and 23413 transitions. Word has length 131 [2024-11-18 16:19:04,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:04,783 INFO L471 AbstractCegarLoop]: Abstraction has 18697 states and 23413 transitions. [2024-11-18 16:19:04,783 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:04,784 INFO L276 IsEmpty]: Start isEmpty. Operand 18697 states and 23413 transitions. [2024-11-18 16:19:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 16:19:04,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:04,792 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] [2024-11-18 16:19:04,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 16:19:04,792 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:04,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1288163950, now seen corresponding path program 1 times [2024-11-18 16:19:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:04,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533353399] [2024-11-18 16:19:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:04,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:04,852 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 16:19:04,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:04,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533353399] [2024-11-18 16:19:04,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533353399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:04,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:04,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:19:04,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476544553] [2024-11-18 16:19:04,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:04,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:19:04,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:19:04,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:19:04,854 INFO L87 Difference]: Start difference. First operand 18697 states and 23413 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:07,199 INFO L93 Difference]: Finished difference Result 44965 states and 56916 transitions. [2024-11-18 16:19:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:19:07,200 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 133 [2024-11-18 16:19:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:07,322 INFO L225 Difference]: With dead ends: 44965 [2024-11-18 16:19:07,323 INFO L226 Difference]: Without dead ends: 30693 [2024-11-18 16:19:07,352 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 16:19:07,354 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 423 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:19:07,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 616 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:19:07,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30693 states. [2024-11-18 16:19:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30693 to 30691. [2024-11-18 16:19:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30691 states, 26438 states have (on average 1.2476359785157727) internal successors, (32985), 26871 states have internal predecessors, (32985), 2097 states have call successors, (2097), 1510 states have call predecessors, (2097), 2154 states have return successors, (3582), 2317 states have call predecessors, (3582), 2096 states have call successors, (3582) [2024-11-18 16:19:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30691 states to 30691 states and 38664 transitions. [2024-11-18 16:19:10,618 INFO L78 Accepts]: Start accepts. Automaton has 30691 states and 38664 transitions. Word has length 133 [2024-11-18 16:19:10,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:10,619 INFO L471 AbstractCegarLoop]: Abstraction has 30691 states and 38664 transitions. [2024-11-18 16:19:10,619 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 16:19:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 30691 states and 38664 transitions. [2024-11-18 16:19:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 16:19:10,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:10,636 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] [2024-11-18 16:19:10,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 16:19:10,636 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:10,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash 956394448, now seen corresponding path program 1 times [2024-11-18 16:19:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474275582] [2024-11-18 16:19:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:10,670 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 16:19:10,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:10,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474275582] [2024-11-18 16:19:10,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474275582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:10,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:10,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:19:10,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087705059] [2024-11-18 16:19:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:10,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:19:10,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:10,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:19:10,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:19:10,672 INFO L87 Difference]: Start difference. First operand 30691 states and 38664 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:19:13,493 INFO L93 Difference]: Finished difference Result 51152 states and 64717 transitions. [2024-11-18 16:19:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:19:13,494 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 133 [2024-11-18 16:19:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:19:13,637 INFO L225 Difference]: With dead ends: 51152 [2024-11-18 16:19:13,637 INFO L226 Difference]: Without dead ends: 24886 [2024-11-18 16:19:13,693 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 16:19:13,694 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 210 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 475 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 16:19:13,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:19:13,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24886 states. [2024-11-18 16:19:15,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24886 to 24886. [2024-11-18 16:19:15,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24886 states, 21385 states have (on average 1.2473228898760813) internal successors, (26674), 21739 states have internal predecessors, (26674), 1708 states have call successors, (1708), 1250 states have call predecessors, (1708), 1791 states have return successors, (2952), 1903 states have call predecessors, (2952), 1707 states have call successors, (2952) [2024-11-18 16:19:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24886 states to 24886 states and 31334 transitions. [2024-11-18 16:19:16,003 INFO L78 Accepts]: Start accepts. Automaton has 24886 states and 31334 transitions. Word has length 133 [2024-11-18 16:19:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:19:16,003 INFO L471 AbstractCegarLoop]: Abstraction has 24886 states and 31334 transitions. [2024-11-18 16:19:16,003 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:19:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 24886 states and 31334 transitions. [2024-11-18 16:19:16,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 16:19:16,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:19:16,013 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] [2024-11-18 16:19:16,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 16:19:16,013 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:19:16,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:19:16,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1579032905, now seen corresponding path program 1 times [2024-11-18 16:19:16,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:19:16,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697585893] [2024-11-18 16:19:16,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:19:16,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:19:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:19:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 16:19:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:19:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697585893] [2024-11-18 16:19:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697585893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:19:16,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:19:16,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:19:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788197993] [2024-11-18 16:19:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:19:16,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:19:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:19:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:19:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:19:16,096 INFO L87 Difference]: Start difference. First operand 24886 states and 31334 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)