./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:53:17,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:53:17,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:53:17,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:53:17,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:53:17,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:53:17,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:53:17,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:53:17,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:53:17,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:53:17,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:53:17,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:53:17,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:53:17,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:53:17,215 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:53:17,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:53:17,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:53:17,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:53:17,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:53:17,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:53:17,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:53:17,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:53:17,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:53:17,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:53:17,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:53:17,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:53:17,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:53:17,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:53:17,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:53:17,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:53:17,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:53:17,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:53:17,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:53:17,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:53:17,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:53:17,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:53:17,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:53:17,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:53:17,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:53:17,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:53:17,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:53:17,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:53:17,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 [2024-11-11 22:53:17,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:53:17,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:53:17,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:53:17,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:53:17,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:53:17,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-11 22:53:18,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:53:19,171 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:53:19,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-11 22:53:19,184 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f22efe6/9da4b4f3323f4042abd774fcc6d1d830/FLAG2d6d30c3d [2024-11-11 22:53:19,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f22efe6/9da4b4f3323f4042abd774fcc6d1d830 [2024-11-11 22:53:19,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:53:19,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:53:19,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:53:19,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:53:19,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:53:19,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:19,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29570184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19, skipping insertion in model container [2024-11-11 22:53:19,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:19,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:53:19,767 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_1.cil-2+token_ring.04.cil-1.c[913,926] [2024-11-11 22:53:19,806 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_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2024-11-11 22:53:19,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:53:19,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:53:19,892 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_1.cil-2+token_ring.04.cil-1.c[913,926] [2024-11-11 22:53:19,909 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_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2024-11-11 22:53:19,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:53:19,991 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:53:19,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19 WrapperNode [2024-11-11 22:53:19,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:53:19,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:53:19,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:53:19,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:53:20,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,061 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 603 [2024-11-11 22:53:20,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:53:20,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:53:20,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:53:20,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:53:20,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,094 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:53:20,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:53:20,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:53:20,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:53:20,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:53:20,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (1/1) ... [2024-11-11 22:53:20,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:53:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:53:20,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:53:20,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:53:20,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:53:20,225 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:53:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:53:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-11 22:53:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-11 22:53:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:53:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:53:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:53:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:53:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:53:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:53:20,229 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:53:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:53:20,229 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:53:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:53:20,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:53:20,230 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:53:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:53:20,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:53:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:53:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:53:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:53:20,352 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:53:20,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:53:20,935 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-11 22:53:20,936 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:53:20,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:53:20,966 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-11 22:53:20,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:53:20 BoogieIcfgContainer [2024-11-11 22:53:20,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:53:20,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:53:20,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:53:20,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:53:20,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:53:19" (1/3) ... [2024-11-11 22:53:20,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07395b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:53:20, skipping insertion in model container [2024-11-11 22:53:20,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:53:19" (2/3) ... [2024-11-11 22:53:20,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07395b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:53:20, skipping insertion in model container [2024-11-11 22:53:20,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:53:20" (3/3) ... [2024-11-11 22:53:20,975 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-11 22:53:20,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:53:20,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:53:21,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:53:21,087 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;@26493f1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:53:21,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:53:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 228 states have internal predecessors, (353), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-11 22:53:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-11 22:53:21,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:21,108 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:21,109 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:21,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1763153476, now seen corresponding path program 1 times [2024-11-11 22:53:21,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:21,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392251882] [2024-11-11 22:53:21,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:21,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:21,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:21,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 22:53:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:21,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:21,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392251882] [2024-11-11 22:53:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392251882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:21,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:53:21,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114998521] [2024-11-11 22:53:21,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:21,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:21,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:53:21,520 INFO L87 Difference]: Start difference. First operand has 259 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 228 states have internal predecessors, (353), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:22,009 INFO L93 Difference]: Finished difference Result 571 states and 886 transitions. [2024-11-11 22:53:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:53:22,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-11 22:53:22,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:22,024 INFO L225 Difference]: With dead ends: 571 [2024-11-11 22:53:22,025 INFO L226 Difference]: Without dead ends: 319 [2024-11-11 22:53:22,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:53:22,037 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 468 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:22,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 542 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:53:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-11 22:53:22,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 313. [2024-11-11 22:53:22,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 272 states have (on average 1.4558823529411764) internal successors, (396), 276 states have internal predecessors, (396), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-11 22:53:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 456 transitions. [2024-11-11 22:53:22,110 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 456 transitions. Word has length 44 [2024-11-11 22:53:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:22,111 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 456 transitions. [2024-11-11 22:53:22,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 456 transitions. [2024-11-11 22:53:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-11 22:53:22,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:22,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:53:22,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:22,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1514701925, now seen corresponding path program 1 times [2024-11-11 22:53:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665454026] [2024-11-11 22:53:22,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:22,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 22:53:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:22,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:22,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665454026] [2024-11-11 22:53:22,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665454026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:22,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:22,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:53:22,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108887773] [2024-11-11 22:53:22,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:22,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:22,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:22,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:53:22,233 INFO L87 Difference]: Start difference. First operand 313 states and 456 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:22,708 INFO L93 Difference]: Finished difference Result 561 states and 796 transitions. [2024-11-11 22:53:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:53:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-11 22:53:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:22,713 INFO L225 Difference]: With dead ends: 561 [2024-11-11 22:53:22,714 INFO L226 Difference]: Without dead ends: 437 [2024-11-11 22:53:22,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:53:22,716 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 209 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:22,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 709 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:53:22,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-11 22:53:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 380. [2024-11-11 22:53:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 333 states have (on average 1.4414414414414414) internal successors, (480), 337 states have internal predecessors, (480), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-11 22:53:22,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 546 transitions. [2024-11-11 22:53:22,758 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 546 transitions. Word has length 45 [2024-11-11 22:53:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:22,759 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 546 transitions. [2024-11-11 22:53:22,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 546 transitions. [2024-11-11 22:53:22,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-11 22:53:22,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:22,765 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:22,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:53:22,765 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:22,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:22,766 INFO L85 PathProgramCache]: Analyzing trace with hash 230344464, now seen corresponding path program 1 times [2024-11-11 22:53:22,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:22,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725006279] [2024-11-11 22:53:22,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:22,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 22:53:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:22,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725006279] [2024-11-11 22:53:22,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725006279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:22,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:22,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:53:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706207057] [2024-11-11 22:53:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:22,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:22,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:53:22,891 INFO L87 Difference]: Start difference. First operand 380 states and 546 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:23,174 INFO L93 Difference]: Finished difference Result 788 states and 1105 transitions. [2024-11-11 22:53:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:53:23,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-11 22:53:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:23,179 INFO L225 Difference]: With dead ends: 788 [2024-11-11 22:53:23,180 INFO L226 Difference]: Without dead ends: 597 [2024-11-11 22:53:23,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:53:23,181 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 478 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:23,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 533 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 22:53:23,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-11 22:53:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 545. [2024-11-11 22:53:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 479 states have (on average 1.3987473903966596) internal successors, (670), 486 states have internal predecessors, (670), 42 states have call successors, (42), 21 states have call predecessors, (42), 22 states have return successors, (52), 38 states have call predecessors, (52), 40 states have call successors, (52) [2024-11-11 22:53:23,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 764 transitions. [2024-11-11 22:53:23,219 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 764 transitions. Word has length 45 [2024-11-11 22:53:23,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:23,219 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 764 transitions. [2024-11-11 22:53:23,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:53:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 764 transitions. [2024-11-11 22:53:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-11 22:53:23,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:23,222 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:23,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:53:23,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:23,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash 781815284, now seen corresponding path program 1 times [2024-11-11 22:53:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71472677] [2024-11-11 22:53:23,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:53:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:53:23,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:23,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71472677] [2024-11-11 22:53:23,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71472677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:23,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:23,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:53:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481344620] [2024-11-11 22:53:23,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:23,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:23,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:23,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:53:23,344 INFO L87 Difference]: Start difference. First operand 545 states and 764 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:53:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:23,707 INFO L93 Difference]: Finished difference Result 1129 states and 1549 transitions. [2024-11-11 22:53:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:53:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-11 22:53:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:23,715 INFO L225 Difference]: With dead ends: 1129 [2024-11-11 22:53:23,715 INFO L226 Difference]: Without dead ends: 773 [2024-11-11 22:53:23,716 INFO L434 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 [2024-11-11 22:53:23,717 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 193 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:23,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 759 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 22:53:23,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-11 22:53:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 735. [2024-11-11 22:53:23,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 645 states have (on average 1.3488372093023255) internal successors, (870), 654 states have internal predecessors, (870), 56 states have call successors, (56), 29 states have call predecessors, (56), 32 states have return successors, (76), 52 states have call predecessors, (76), 54 states have call successors, (76) [2024-11-11 22:53:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1002 transitions. [2024-11-11 22:53:23,764 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1002 transitions. Word has length 62 [2024-11-11 22:53:23,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:23,764 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1002 transitions. [2024-11-11 22:53:23,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:53:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1002 transitions. [2024-11-11 22:53:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:53:23,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:23,767 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:23,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:53:23,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:23,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:23,768 INFO L85 PathProgramCache]: Analyzing trace with hash 140663655, now seen corresponding path program 1 times [2024-11-11 22:53:23,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754636607] [2024-11-11 22:53:23,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 22:53:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:53:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 22:53:23,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754636607] [2024-11-11 22:53:23,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754636607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:23,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:23,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:53:23,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645406602] [2024-11-11 22:53:23,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:23,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:23,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:53:23,841 INFO L87 Difference]: Start difference. First operand 735 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 22:53:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:24,136 INFO L93 Difference]: Finished difference Result 1388 states and 1855 transitions. [2024-11-11 22:53:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:53:24,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-11 22:53:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:24,147 INFO L225 Difference]: With dead ends: 1388 [2024-11-11 22:53:24,148 INFO L226 Difference]: Without dead ends: 934 [2024-11-11 22:53:24,150 INFO L434 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 [2024-11-11 22:53:24,152 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 465 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:24,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 532 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 22:53:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-11 22:53:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 879. [2024-11-11 22:53:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 773 states have (on average 1.3208279430789134) internal successors, (1021), 784 states have internal predecessors, (1021), 64 states have call successors, (64), 35 states have call predecessors, (64), 40 states have return successors, (90), 60 states have call predecessors, (90), 62 states have call successors, (90) [2024-11-11 22:53:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1175 transitions. [2024-11-11 22:53:24,214 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1175 transitions. Word has length 67 [2024-11-11 22:53:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:24,214 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1175 transitions. [2024-11-11 22:53:24,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 22:53:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1175 transitions. [2024-11-11 22:53:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 22:53:24,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:24,219 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:53:24,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:53:24,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:24,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:24,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1366170724, now seen corresponding path program 1 times [2024-11-11 22:53:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:24,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413000034] [2024-11-11 22:53:24,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:24,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:24,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:24,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:53:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:24,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:53:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:53:24,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:24,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413000034] [2024-11-11 22:53:24,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413000034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:53:24,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039571098] [2024-11-11 22:53:24,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:24,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:53:24,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:53:24,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:53:24,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:53:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:24,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 22:53:24,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:53:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:24,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:53:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:53:24,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039571098] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-11 22:53:24,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-11 22:53:24,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-11 22:53:24,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382888139] [2024-11-11 22:53:24,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:24,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:53:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:24,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:53:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:53:24,640 INFO L87 Difference]: Start difference. First operand 879 states and 1175 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:53:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:24,775 INFO L93 Difference]: Finished difference Result 935 states and 1243 transitions. [2024-11-11 22:53:24,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 22:53:24,776 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-11 22:53:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:24,781 INFO L225 Difference]: With dead ends: 935 [2024-11-11 22:53:24,781 INFO L226 Difference]: Without dead ends: 932 [2024-11-11 22:53:24,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:53:24,783 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 645 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:24,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 456 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:53:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-11 22:53:24,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 878. [2024-11-11 22:53:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 773 states have (on average 1.3182406209573092) internal successors, (1019), 783 states have internal predecessors, (1019), 63 states have call successors, (63), 35 states have call predecessors, (63), 40 states have return successors, (90), 60 states have call predecessors, (90), 62 states have call successors, (90) [2024-11-11 22:53:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1172 transitions. [2024-11-11 22:53:24,842 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1172 transitions. Word has length 68 [2024-11-11 22:53:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:24,842 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1172 transitions. [2024-11-11 22:53:24,843 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:53:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1172 transitions. [2024-11-11 22:53:24,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 22:53:24,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:24,845 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:53:24,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 22:53:25,051 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,SelfDestructingSolverStorable5 [2024-11-11 22:53:25,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:25,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash -599191478, now seen corresponding path program 1 times [2024-11-11 22:53:25,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:25,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298795567] [2024-11-11 22:53:25,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:25,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:25,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:25,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:53:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:25,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:53:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:53:25,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:25,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298795567] [2024-11-11 22:53:25,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298795567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:53:25,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468651351] [2024-11-11 22:53:25,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:25,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:53:25,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:53:25,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:53:25,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:53:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:25,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:53:25,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:53:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:25,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:53:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:53:25,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468651351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:53:25,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:53:25,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-11 22:53:25,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329780457] [2024-11-11 22:53:25,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:53:25,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 22:53:25,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:25,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 22:53:25,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:53:25,651 INFO L87 Difference]: Start difference. First operand 878 states and 1172 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 22:53:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:26,767 INFO L93 Difference]: Finished difference Result 2385 states and 3160 transitions. [2024-11-11 22:53:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:53:26,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-11 22:53:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:26,777 INFO L225 Difference]: With dead ends: 2385 [2024-11-11 22:53:26,779 INFO L226 Difference]: Without dead ends: 1841 [2024-11-11 22:53:26,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-11 22:53:26,783 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 647 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:26,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 2538 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:53:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2024-11-11 22:53:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1241. [2024-11-11 22:53:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1097 states have (on average 1.293527803099362) internal successors, (1419), 1115 states have internal predecessors, (1419), 83 states have call successors, (83), 49 states have call predecessors, (83), 59 states have return successors, (124), 77 states have call predecessors, (124), 82 states have call successors, (124) [2024-11-11 22:53:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1626 transitions. [2024-11-11 22:53:26,899 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1626 transitions. Word has length 69 [2024-11-11 22:53:26,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:26,900 INFO L471 AbstractCegarLoop]: Abstraction has 1241 states and 1626 transitions. [2024-11-11 22:53:26,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 22:53:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1626 transitions. [2024-11-11 22:53:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-11 22:53:26,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:26,906 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 22:53:26,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 22:53:27,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-11 22:53:27,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:27,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash 755028000, now seen corresponding path program 1 times [2024-11-11 22:53:27,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:27,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289197823] [2024-11-11 22:53:27,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:53:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:53:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 22:53:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 22:53:27,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:27,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289197823] [2024-11-11 22:53:27,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289197823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:53:27,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098806682] [2024-11-11 22:53:27,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:27,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:53:27,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:53:27,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:53:27,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:53:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 22:53:27,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:53:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:53:27,374 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:53:27,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098806682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:27,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:53:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-11 22:53:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644929979] [2024-11-11 22:53:27,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:27,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:53:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:53:27,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:27,376 INFO L87 Difference]: Start difference. First operand 1241 states and 1626 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-11 22:53:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:27,434 INFO L93 Difference]: Finished difference Result 1938 states and 2530 transitions. [2024-11-11 22:53:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:53:27,435 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), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-11 22:53:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:27,442 INFO L225 Difference]: With dead ends: 1938 [2024-11-11 22:53:27,442 INFO L226 Difference]: Without dead ends: 1119 [2024-11-11 22:53:27,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:27,445 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 325 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:27,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 470 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:53:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-11 22:53:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1104. [2024-11-11 22:53:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 976 states have (on average 1.2920081967213115) internal successors, (1261), 993 states have internal predecessors, (1261), 75 states have call successors, (75), 43 states have call predecessors, (75), 51 states have return successors, (110), 68 states have call predecessors, (110), 74 states have call successors, (110) [2024-11-11 22:53:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1446 transitions. [2024-11-11 22:53:27,517 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1446 transitions. Word has length 88 [2024-11-11 22:53:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:27,518 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1446 transitions. [2024-11-11 22:53:27,519 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), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-11 22:53:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1446 transitions. [2024-11-11 22:53:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:27,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:27,521 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:27,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 22:53:27,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:53:27,723 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:27,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1527050226, now seen corresponding path program 1 times [2024-11-11 22:53:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:27,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789125803] [2024-11-11 22:53:27,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:27,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:27,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:27,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789125803] [2024-11-11 22:53:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789125803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:27,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:27,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:53:27,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250468230] [2024-11-11 22:53:27,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:27,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:53:27,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:27,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:53:27,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:53:27,810 INFO L87 Difference]: Start difference. First operand 1104 states and 1446 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:28,575 INFO L93 Difference]: Finished difference Result 1330 states and 1795 transitions. [2024-11-11 22:53:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:53:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:53:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:28,581 INFO L225 Difference]: With dead ends: 1330 [2024-11-11 22:53:28,581 INFO L226 Difference]: Without dead ends: 1158 [2024-11-11 22:53:28,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:53:28,583 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 493 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:28,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 589 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:53:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-11 22:53:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1104. [2024-11-11 22:53:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 976 states have (on average 1.290983606557377) internal successors, (1260), 993 states have internal predecessors, (1260), 75 states have call successors, (75), 43 states have call predecessors, (75), 51 states have return successors, (110), 68 states have call predecessors, (110), 74 states have call successors, (110) [2024-11-11 22:53:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1445 transitions. [2024-11-11 22:53:28,655 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1445 transitions. Word has length 90 [2024-11-11 22:53:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:28,656 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1445 transitions. [2024-11-11 22:53:28,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1445 transitions. [2024-11-11 22:53:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:28,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:28,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:28,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:53:28,659 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 688016564, now seen corresponding path program 1 times [2024-11-11 22:53:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813846515] [2024-11-11 22:53:28,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:28,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813846515] [2024-11-11 22:53:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813846515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:53:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370973888] [2024-11-11 22:53:28,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:28,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:53:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:53:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:53:28,796 INFO L87 Difference]: Start difference. First operand 1104 states and 1445 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:30,040 INFO L93 Difference]: Finished difference Result 1554 states and 2142 transitions. [2024-11-11 22:53:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:53:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:30,048 INFO L225 Difference]: With dead ends: 1554 [2024-11-11 22:53:30,048 INFO L226 Difference]: Without dead ends: 1384 [2024-11-11 22:53:30,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:53:30,050 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 790 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:30,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 835 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:53:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-11 22:53:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1277. [2024-11-11 22:53:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1129 states have (on average 1.3224092116917627) internal successors, (1493), 1147 states have internal predecessors, (1493), 88 states have call successors, (88), 49 states have call predecessors, (88), 58 states have return successors, (126), 81 states have call predecessors, (126), 87 states have call successors, (126) [2024-11-11 22:53:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1707 transitions. [2024-11-11 22:53:30,160 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1707 transitions. Word has length 90 [2024-11-11 22:53:30,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:30,162 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1707 transitions. [2024-11-11 22:53:30,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1707 transitions. [2024-11-11 22:53:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:30,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:30,165 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:30,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:53:30,165 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:30,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash -486642888, now seen corresponding path program 1 times [2024-11-11 22:53:30,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:30,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564805950] [2024-11-11 22:53:30,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:30,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:30,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564805950] [2024-11-11 22:53:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564805950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:30,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:30,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876484243] [2024-11-11 22:53:30,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:30,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:30,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:30,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:30,336 INFO L87 Difference]: Start difference. First operand 1277 states and 1707 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:31,874 INFO L93 Difference]: Finished difference Result 1957 states and 2754 transitions. [2024-11-11 22:53:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:53:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:31,883 INFO L225 Difference]: With dead ends: 1957 [2024-11-11 22:53:31,883 INFO L226 Difference]: Without dead ends: 1614 [2024-11-11 22:53:31,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:53:31,885 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 801 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:31,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1436 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:53:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-11 22:53:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1439. [2024-11-11 22:53:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1271 states have (on average 1.3406766325727772) internal successors, (1704), 1290 states have internal predecessors, (1704), 101 states have call successors, (101), 55 states have call predecessors, (101), 65 states have return successors, (141), 95 states have call predecessors, (141), 100 states have call successors, (141) [2024-11-11 22:53:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1946 transitions. [2024-11-11 22:53:32,004 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1946 transitions. Word has length 90 [2024-11-11 22:53:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:32,004 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1946 transitions. [2024-11-11 22:53:32,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1946 transitions. [2024-11-11 22:53:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:32,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:32,007 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:32,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:53:32,007 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:32,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash 400579958, now seen corresponding path program 1 times [2024-11-11 22:53:32,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:32,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646518900] [2024-11-11 22:53:32,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:32,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:32,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:32,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646518900] [2024-11-11 22:53:32,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646518900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:32,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:32,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006807704] [2024-11-11 22:53:32,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:32,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:32,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:32,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:32,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:32,138 INFO L87 Difference]: Start difference. First operand 1439 states and 1946 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:33,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:33,609 INFO L93 Difference]: Finished difference Result 2549 states and 3651 transitions. [2024-11-11 22:53:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:53:33,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:33,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:33,619 INFO L225 Difference]: With dead ends: 2549 [2024-11-11 22:53:33,619 INFO L226 Difference]: Without dead ends: 2044 [2024-11-11 22:53:33,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:53:33,622 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 795 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:33,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1434 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:53:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2024-11-11 22:53:33,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1767. [2024-11-11 22:53:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1559 states have (on average 1.3681847338037203) internal successors, (2133), 1580 states have internal predecessors, (2133), 127 states have call successors, (127), 67 states have call predecessors, (127), 79 states have return successors, (175), 123 states have call predecessors, (175), 126 states have call successors, (175) [2024-11-11 22:53:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2435 transitions. [2024-11-11 22:53:33,771 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2435 transitions. Word has length 90 [2024-11-11 22:53:33,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:33,771 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2435 transitions. [2024-11-11 22:53:33,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:33,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2435 transitions. [2024-11-11 22:53:33,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:33,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:33,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:33,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:53:33,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:33,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash 477480756, now seen corresponding path program 1 times [2024-11-11 22:53:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:33,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393308812] [2024-11-11 22:53:33,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:33,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:33,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:33,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393308812] [2024-11-11 22:53:33,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393308812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:33,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:33,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:33,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130529057] [2024-11-11 22:53:33,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:33,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:33,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:33,936 INFO L87 Difference]: Start difference. First operand 1767 states and 2435 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:35,378 INFO L93 Difference]: Finished difference Result 3699 states and 5388 transitions. [2024-11-11 22:53:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:53:35,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:35,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:35,408 INFO L225 Difference]: With dead ends: 3699 [2024-11-11 22:53:35,408 INFO L226 Difference]: Without dead ends: 2866 [2024-11-11 22:53:35,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:53:35,412 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 794 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:35,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1434 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:53:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2024-11-11 22:53:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2424. [2024-11-11 22:53:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2136 states have (on average 1.4002808988764044) internal successors, (2991), 2161 states have internal predecessors, (2991), 179 states have call successors, (179), 91 states have call predecessors, (179), 107 states have return successors, (249), 179 states have call predecessors, (249), 178 states have call successors, (249) [2024-11-11 22:53:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3419 transitions. [2024-11-11 22:53:35,595 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3419 transitions. Word has length 90 [2024-11-11 22:53:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:35,595 INFO L471 AbstractCegarLoop]: Abstraction has 2424 states and 3419 transitions. [2024-11-11 22:53:35,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:35,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3419 transitions. [2024-11-11 22:53:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:35,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:35,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:35,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:53:35,600 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:35,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:35,600 INFO L85 PathProgramCache]: Analyzing trace with hash -489869898, now seen corresponding path program 1 times [2024-11-11 22:53:35,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:35,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596694393] [2024-11-11 22:53:35,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:35,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:35,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596694393] [2024-11-11 22:53:35,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596694393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:35,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:35,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:35,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187935052] [2024-11-11 22:53:35,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:35,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:35,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:35,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:35,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:35,748 INFO L87 Difference]: Start difference. First operand 2424 states and 3419 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:36,589 INFO L93 Difference]: Finished difference Result 4355 states and 6393 transitions. [2024-11-11 22:53:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:53:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:36,602 INFO L225 Difference]: With dead ends: 4355 [2024-11-11 22:53:36,602 INFO L226 Difference]: Without dead ends: 2865 [2024-11-11 22:53:36,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:53:36,606 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 631 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:36,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 850 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:53:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-11-11 22:53:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2424. [2024-11-11 22:53:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2136 states have (on average 1.396067415730337) internal successors, (2982), 2161 states have internal predecessors, (2982), 179 states have call successors, (179), 91 states have call predecessors, (179), 107 states have return successors, (249), 179 states have call predecessors, (249), 178 states have call successors, (249) [2024-11-11 22:53:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3410 transitions. [2024-11-11 22:53:36,786 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3410 transitions. Word has length 90 [2024-11-11 22:53:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:36,786 INFO L471 AbstractCegarLoop]: Abstraction has 2424 states and 3410 transitions. [2024-11-11 22:53:36,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3410 transitions. [2024-11-11 22:53:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:36,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:36,790 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:36,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:53:36,790 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:36,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1418587892, now seen corresponding path program 1 times [2024-11-11 22:53:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:36,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138766470] [2024-11-11 22:53:36,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:36,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:36,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138766470] [2024-11-11 22:53:36,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138766470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:36,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:36,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:36,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029353281] [2024-11-11 22:53:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:36,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:36,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:36,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:36,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:36,979 INFO L87 Difference]: Start difference. First operand 2424 states and 3410 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:38,514 INFO L93 Difference]: Finished difference Result 6412 states and 9448 transitions. [2024-11-11 22:53:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:53:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:38,540 INFO L225 Difference]: With dead ends: 6412 [2024-11-11 22:53:38,540 INFO L226 Difference]: Without dead ends: 4922 [2024-11-11 22:53:38,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:53:38,546 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 920 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:38,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1420 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:53:38,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2024-11-11 22:53:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 3690. [2024-11-11 22:53:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3690 states, 3250 states have (on average 1.4246153846153846) internal successors, (4630), 3283 states have internal predecessors, (4630), 275 states have call successors, (275), 139 states have call predecessors, (275), 163 states have return successors, (407), 283 states have call predecessors, (407), 274 states have call successors, (407) [2024-11-11 22:53:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 5312 transitions. [2024-11-11 22:53:38,865 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 5312 transitions. Word has length 90 [2024-11-11 22:53:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:38,866 INFO L471 AbstractCegarLoop]: Abstraction has 3690 states and 5312 transitions. [2024-11-11 22:53:38,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 5312 transitions. [2024-11-11 22:53:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:38,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:38,870 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:38,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:53:38,871 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:38,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:38,871 INFO L85 PathProgramCache]: Analyzing trace with hash 925961718, now seen corresponding path program 1 times [2024-11-11 22:53:38,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:38,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84858661] [2024-11-11 22:53:38,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:38,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:38,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:38,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:38,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:39,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:39,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:39,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:39,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84858661] [2024-11-11 22:53:39,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84858661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:39,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:39,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:39,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670072383] [2024-11-11 22:53:39,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:39,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:39,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:39,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:39,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:39,014 INFO L87 Difference]: Start difference. First operand 3690 states and 5312 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:40,728 INFO L93 Difference]: Finished difference Result 11036 states and 16452 transitions. [2024-11-11 22:53:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:53:40,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:40,758 INFO L225 Difference]: With dead ends: 11036 [2024-11-11 22:53:40,758 INFO L226 Difference]: Without dead ends: 8280 [2024-11-11 22:53:40,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:53:40,768 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 846 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:40,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1039 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:53:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2024-11-11 22:53:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 6251. [2024-11-11 22:53:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 5515 states have (on average 1.4491387126019946) internal successors, (7992), 5564 states have internal predecessors, (7992), 459 states have call successors, (459), 235 states have call predecessors, (459), 275 states have return successors, (769), 483 states have call predecessors, (769), 458 states have call successors, (769) [2024-11-11 22:53:41,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 9220 transitions. [2024-11-11 22:53:41,332 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 9220 transitions. Word has length 90 [2024-11-11 22:53:41,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:41,332 INFO L471 AbstractCegarLoop]: Abstraction has 6251 states and 9220 transitions. [2024-11-11 22:53:41,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 9220 transitions. [2024-11-11 22:53:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:41,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:41,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:41,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:53:41,342 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:41,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:41,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1879901876, now seen corresponding path program 1 times [2024-11-11 22:53:41,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:41,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692824599] [2024-11-11 22:53:41,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:41,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:41,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692824599] [2024-11-11 22:53:41,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692824599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:41,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:41,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:41,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171506779] [2024-11-11 22:53:41,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:41,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:41,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:41,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:41,482 INFO L87 Difference]: Start difference. First operand 6251 states and 9220 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:43,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:43,557 INFO L93 Difference]: Finished difference Result 20091 states and 30378 transitions. [2024-11-11 22:53:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:53:43,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:43,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:43,615 INFO L225 Difference]: With dead ends: 20091 [2024-11-11 22:53:43,615 INFO L226 Difference]: Without dead ends: 14774 [2024-11-11 22:53:43,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:53:43,638 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 841 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:43,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1424 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:53:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14774 states. [2024-11-11 22:53:44,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14774 to 11356. [2024-11-11 22:53:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11356 states, 10044 states have (on average 1.466547192353644) internal successors, (14730), 10125 states have internal predecessors, (14730), 811 states have call successors, (811), 427 states have call predecessors, (811), 499 states have return successors, (1639), 867 states have call predecessors, (1639), 810 states have call successors, (1639) [2024-11-11 22:53:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11356 states to 11356 states and 17180 transitions. [2024-11-11 22:53:44,464 INFO L78 Accepts]: Start accepts. Automaton has 11356 states and 17180 transitions. Word has length 90 [2024-11-11 22:53:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 11356 states and 17180 transitions. [2024-11-11 22:53:44,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 11356 states and 17180 transitions. [2024-11-11 22:53:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:44,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:44,475 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:44,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:53:44,475 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash 663748150, now seen corresponding path program 1 times [2024-11-11 22:53:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049075695] [2024-11-11 22:53:44,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:44,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:44,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049075695] [2024-11-11 22:53:44,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049075695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:44,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:44,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:53:44,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632297436] [2024-11-11 22:53:44,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:44,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:53:44,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:44,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:53:44,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:44,688 INFO L87 Difference]: Start difference. First operand 11356 states and 17180 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:47,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:47,906 INFO L93 Difference]: Finished difference Result 37610 states and 57936 transitions. [2024-11-11 22:53:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:53:47,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:47,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:48,010 INFO L225 Difference]: With dead ends: 37610 [2024-11-11 22:53:48,010 INFO L226 Difference]: Without dead ends: 27188 [2024-11-11 22:53:48,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:53:48,046 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 783 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:48,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1424 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:53:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27188 states. [2024-11-11 22:53:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27188 to 21533. [2024-11-11 22:53:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21533 states, 19101 states have (on average 1.4782472121878436) internal successors, (28236), 19246 states have internal predecessors, (28236), 1483 states have call successors, (1483), 811 states have call predecessors, (1483), 947 states have return successors, (3833), 1603 states have call predecessors, (3833), 1482 states have call successors, (3833) [2024-11-11 22:53:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21533 states to 21533 states and 33552 transitions. [2024-11-11 22:53:50,262 INFO L78 Accepts]: Start accepts. Automaton has 21533 states and 33552 transitions. Word has length 90 [2024-11-11 22:53:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:50,263 INFO L471 AbstractCegarLoop]: Abstraction has 21533 states and 33552 transitions. [2024-11-11 22:53:50,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 21533 states and 33552 transitions. [2024-11-11 22:53:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:53:50,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:50,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:50,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:53:50,284 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:50,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash -68219276, now seen corresponding path program 1 times [2024-11-11 22:53:50,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:50,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840929993] [2024-11-11 22:53:50,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:53:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:53:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:53:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:53:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:53:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:53:50,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:50,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840929993] [2024-11-11 22:53:50,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840929993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:50,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:53:50,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:53:50,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907594244] [2024-11-11 22:53:50,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:50,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:53:50,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:50,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:53:50,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:53:50,393 INFO L87 Difference]: Start difference. First operand 21533 states and 33552 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:53,999 INFO L93 Difference]: Finished difference Result 59373 states and 92457 transitions. [2024-11-11 22:53:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:53:53,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-11 22:53:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:54,127 INFO L225 Difference]: With dead ends: 59373 [2024-11-11 22:53:54,127 INFO L226 Difference]: Without dead ends: 38775 [2024-11-11 22:53:54,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:53:54,181 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 987 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:53:54,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 1096 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:53:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38775 states. [2024-11-11 22:53:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38775 to 31844. [2024-11-11 22:53:57,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31844 states, 28208 states have (on average 1.4718874078275666) internal successors, (41519), 28482 states have internal predecessors, (41519), 2233 states have call successors, (2233), 1201 states have call predecessors, (2233), 1401 states have return successors, (5313), 2288 states have call predecessors, (5313), 2232 states have call successors, (5313) [2024-11-11 22:53:57,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31844 states to 31844 states and 49065 transitions. [2024-11-11 22:53:57,187 INFO L78 Accepts]: Start accepts. Automaton has 31844 states and 49065 transitions. Word has length 90 [2024-11-11 22:53:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:53:57,188 INFO L471 AbstractCegarLoop]: Abstraction has 31844 states and 49065 transitions. [2024-11-11 22:53:57,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:53:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 31844 states and 49065 transitions. [2024-11-11 22:53:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 22:53:57,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:53:57,229 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:53:57,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:53:57,230 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:53:57,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:53:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash 797698365, now seen corresponding path program 1 times [2024-11-11 22:53:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:53:57,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878998899] [2024-11-11 22:53:57,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:57,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:53:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:53:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:53:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:53:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 22:53:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 22:53:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 22:53:57,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:53:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878998899] [2024-11-11 22:53:57,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878998899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:53:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68960275] [2024-11-11 22:53:57,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:53:57,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:53:57,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:53:57,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:53:57,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:53:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:53:57,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:53:57,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:53:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 22:53:57,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:53:57,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68960275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:53:57,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:53:57,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-11 22:53:57,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144723512] [2024-11-11 22:53:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:53:57,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:53:57,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:53:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:53:57,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:57,455 INFO L87 Difference]: Start difference. First operand 31844 states and 49065 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 22:53:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:53:59,437 INFO L93 Difference]: Finished difference Result 32223 states and 49533 transitions. [2024-11-11 22:53:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:53:59,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-11 22:53:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:53:59,581 INFO L225 Difference]: With dead ends: 32223 [2024-11-11 22:53:59,582 INFO L226 Difference]: Without dead ends: 30923 [2024-11-11 22:53:59,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:53:59,608 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 746 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 [2024-11-11 22:53:59,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 746 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:53:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30923 states. [2024-11-11 22:54:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30923 to 30923. [2024-11-11 22:54:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30923 states, 27390 states have (on average 1.4784592917123038) internal successors, (40495), 27648 states have internal predecessors, (40495), 2176 states have call successors, (2176), 1164 states have call predecessors, (2176), 1356 states have return successors, (5221), 2238 states have call predecessors, (5221), 2176 states have call successors, (5221) [2024-11-11 22:54:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30923 states to 30923 states and 47892 transitions. [2024-11-11 22:54:02,372 INFO L78 Accepts]: Start accepts. Automaton has 30923 states and 47892 transitions. Word has length 103 [2024-11-11 22:54:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:54:02,373 INFO L471 AbstractCegarLoop]: Abstraction has 30923 states and 47892 transitions. [2024-11-11 22:54:02,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 22:54:02,374 INFO L276 IsEmpty]: Start isEmpty. Operand 30923 states and 47892 transitions. [2024-11-11 22:54:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-11 22:54:02,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:54:02,445 INFO L218 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, 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] [2024-11-11 22:54:02,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 22:54:02,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:54:02,647 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:54:02,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:54:02,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1710592462, now seen corresponding path program 1 times [2024-11-11 22:54:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:54:02,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590794024] [2024-11-11 22:54:02,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:02,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:54:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:54:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:54:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:54:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:54:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:54:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 22:54:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:54:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 22:54:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 22:54:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:54:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590794024] [2024-11-11 22:54:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590794024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:54:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190671606] [2024-11-11 22:54:02,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:02,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:54:02,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:54:02,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:54:02,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 22:54:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:02,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:54:02,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:54:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 22:54:03,002 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:54:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190671606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:54:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:54:03,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-11 22:54:03,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045747102] [2024-11-11 22:54:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:54:03,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:54:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:54:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:54:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:54:03,004 INFO L87 Difference]: Start difference. First operand 30923 states and 47892 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:54:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:54:07,033 INFO L93 Difference]: Finished difference Result 92058 states and 143442 transitions. [2024-11-11 22:54:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:54:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-11 22:54:07,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:54:07,267 INFO L225 Difference]: With dead ends: 92058 [2024-11-11 22:54:07,267 INFO L226 Difference]: Without dead ends: 61149 [2024-11-11 22:54:07,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:54:07,359 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 214 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:54:07,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 508 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:54:07,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61149 states. [2024-11-11 22:54:12,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61149 to 60759. [2024-11-11 22:54:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60759 states, 53796 states have (on average 1.476317941854413) internal successors, (79420), 54311 states have internal predecessors, (79420), 4250 states have call successors, (4250), 2328 states have call predecessors, (4250), 2712 states have return successors, (10213), 4247 states have call predecessors, (10213), 4250 states have call successors, (10213) [2024-11-11 22:54:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60759 states to 60759 states and 93883 transitions. [2024-11-11 22:54:12,532 INFO L78 Accepts]: Start accepts. Automaton has 60759 states and 93883 transitions. Word has length 147 [2024-11-11 22:54:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:54:12,532 INFO L471 AbstractCegarLoop]: Abstraction has 60759 states and 93883 transitions. [2024-11-11 22:54:12,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:54:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 60759 states and 93883 transitions. [2024-11-11 22:54:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-11 22:54:12,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:54:12,660 INFO L218 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, 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] [2024-11-11 22:54:12,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 22:54:12,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:54:12,861 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:54:12,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:54:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1588389358, now seen corresponding path program 1 times [2024-11-11 22:54:12,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:54:12,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980490643] [2024-11-11 22:54:12,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:12,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:54:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:54:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:54:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:54:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:54:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:54:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:12,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 22:54:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:13,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:54:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:13,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 22:54:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 22:54:13,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:54:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980490643] [2024-11-11 22:54:13,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980490643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:54:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192559824] [2024-11-11 22:54:13,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:13,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:54:13,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:54:13,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:54:13,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 22:54:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:13,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:54:13,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:54:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-11 22:54:13,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:54:13,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192559824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:54:13,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:54:13,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-11 22:54:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288333362] [2024-11-11 22:54:13,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:54:13,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:54:13,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:54:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:54:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:54:13,186 INFO L87 Difference]: Start difference. First operand 60759 states and 93883 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)